Hispana. Acceso en línea al Patrimonio Cultural Digital Español

Está en:  › Dades de registre

2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions

Identificadores del recurso

Microchemical Journal Volume 157, September 2020, 104877

0026-265X

http://hdl.handle.net/10115/16912

10.1016/j.microc.2020.104877

Procedència

(BURJC-Digital: Repositorio Institucional de la Universidad Rey Juan Carlos)

Fitxa

Títol:: 2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions
Tema:: Chemical modified carbon paste electrodes; Mesostructured silicas; 2- Mercaptopyrimidine; Electrochemical sensor; Scopolamine; Herbal teas; Qu?mica; 23 Qu?mica
Descripció:: Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).
Idioma:: English
Relació:: MCIU/AEI/FEDER, UE (RTI2018-094558-B-100, EVALKALIM
Autor/Productor:: Ga??n, Judith; Morante-Zarcero, Sonia; P?rez-Quintanilla, Dami?n; Sierra, Isabel
Editor:: Elsevier
Drets:: Attribution-NonCommercial-NoDerivatives 4.0 Internacional; http://creativecommons.org/licenses/by-nc-nd/4.0/; info:eu-repo/semantics/embargoedAccess
Data:: 2020-07-01T11:10:46Z; 2020
Tipo de recurso:: info:eu-repo/semantics/article

oai_dc

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<oai_dc:dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
1. <dc:title>2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</dc:title>
2. <dc:creator>Ga??n, Judith</dc:creator>
3. <dc:creator>Morante-Zarcero, Sonia</dc:creator>
4. <dc:creator>P?rez-Quintanilla, Dami?n</dc:creator>
5. <dc:creator>Sierra, Isabel</dc:creator>
6. <dc:subject>Chemical modified carbon paste electrodes</dc:subject>
7. <dc:subject>Mesostructured silicas</dc:subject>
8. <dc:subject>2- Mercaptopyrimidine</dc:subject>
9. <dc:subject>Electrochemical sensor</dc:subject>
10. <dc:subject>Scopolamine</dc:subject>
11. <dc:subject>Herbal teas</dc:subject>
12. <dc:subject>Qu?mica</dc:subject>
13. <dc:subject>23 Qu?mica</dc:subject>
14. <dc:description>Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</dc:description>
15. <dc:date>2020-07-01T11:10:46Z</dc:date>
16. <dc:date>2020-07-01T11:10:46Z</dc:date>
17. <dc:date>2020</dc:date>
18. <dc:type>info:eu-repo/semantics/article</dc:type>
19. <dc:identifier>Microchemical Journal Volume 157, September 2020, 104877</dc:identifier>
20. <dc:identifier>0026-265X</dc:identifier>
21. <dc:identifier>http://hdl.handle.net/10115/16912</dc:identifier>
22. <dc:identifier>10.1016/j.microc.2020.104877</dc:identifier>
23. <dc:language>eng</dc:language>
24. <dc:relation>MCIU/AEI/FEDER, UE (RTI2018-094558-B-100, EVALKALIM</dc:relation>
25. <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
26. <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
27. <dc:rights>info:eu-repo/semantics/embargoedAccess</dc:rights>
28. <dc:publisher>Elsevier</dc:publisher>
</oai_dc:dc>

didl

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<d:DIDL schemaLocation="urn:mpeg:mpeg21:2002:02-DIDL-NS http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/did/didl.xsd">
1. <d:DIDLInfo>
  1. <dcterms:created schemaLocation="http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/dcterms.xsd">2020-07-01T11:10:46Z</dcterms:created>
  </d:DIDLInfo>
2. <d:Item id="hdl_10115_16912">
  1. <d:Descriptor>
    1. <d:Statement mimeType="application/xml; charset=utf-8">
      1. <dii:Identifier schemaLocation="urn:mpeg:mpeg21:2002:01-DII-NS http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-21_schema_files/dii/dii.xsd">urn:hdl:10115/16912</dii:Identifier>
      </d:Statement>
    </d:Descriptor>
  2. <d:Descriptor>
    1. <d:Statement mimeType="application/xml; charset=utf-8">
      1. <oai_dc:dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
        <dc:title>2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</dc:title>
        <dc:creator>Ga??n, Judith</dc:creator>
        <dc:creator>Morante-Zarcero, Sonia</dc:creator>
        <dc:creator>P?rez-Quintanilla, Dami?n</dc:creator>
        <dc:creator>Sierra, Isabel</dc:creator>
        <dc:subject>Chemical modified carbon paste electrodes</dc:subject>
        <dc:subject>Mesostructured silicas</dc:subject>
        <dc:subject>2- Mercaptopyrimidine</dc:subject>
        <dc:subject>Electrochemical sensor</dc:subject>
        <dc:subject>Scopolamine</dc:subject>
        <dc:subject>Herbal teas</dc:subject>
        <dc:subject>Qu?mica</dc:subject>
        <dc:description>Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</dc:description>
        <dc:date>2020-07-01T11:10:46Z</dc:date>
        <dc:date>2020-07-01T11:10:46Z</dc:date>
        <dc:date>2020</dc:date>
        <dc:type>info:eu-repo/semantics/article</dc:type>
        <dc:identifier>Microchemical Journal Volume 157, September 2020, 104877</dc:identifier>
        <dc:identifier>0026-265X</dc:identifier>
        <dc:identifier>http://hdl.handle.net/10115/16912</dc:identifier>
        <dc:identifier>10.1016/j.microc.2020.104877</dc:identifier>
        <dc:language>eng</dc:language>
        <dc:relation>MCIU/AEI/FEDER, UE (RTI2018-094558-B-100, EVALKALIM</dc:relation>
        <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
        <dc:rights>info:eu-repo/semantics/embargoedAccess</dc:rights>
        <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
        <dc:publisher>Elsevier</dc:publisher>
        </oai_dc:dc>
      </d:Statement>
    </d:Descriptor>
  3. <d:Component id="10115_16912_1">
    1. <d:Resource mimeType="application/pdf" ref="https://eciencia.urjc.es/bitstream/10115/16912/1/manuscript_%20MICROC_2020_407_ARCHIVO%20ABIERTO.pdf" />
    </d:Component>
  </d:Item>
</d:DIDL>

dim

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<dim:dim schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.arvo.es/dim.xsd">
1. <dim:field element="contributor" mdschema="dc" qualifier="author">Ga??n, Judith</dim:field>
2. <dim:field element="contributor" mdschema="dc" qualifier="author">Morante-Zarcero, Sonia</dim:field>
3. <dim:field element="contributor" mdschema="dc" qualifier="author">P?rez-Quintanilla, Dami?n</dim:field>
4. <dim:field element="contributor" mdschema="dc" qualifier="author">Sierra, Isabel</dim:field>
5. <dim:field element="date" mdschema="dc" qualifier="accessioned">2020-07-01T11:10:46Z</dim:field>
6. <dim:field element="date" mdschema="dc" qualifier="available">2020-07-01T11:10:46Z</dim:field>
7. <dim:field element="date" mdschema="dc" qualifier="issued">2020</dim:field>
8. <dim:field element="identifier" lang="es" mdschema="dc" qualifier="citation">Microchemical Journal Volume 157, September 2020, 104877</dim:field>
9. <dim:field element="identifier" mdschema="dc" qualifier="issn">0026-265X</dim:field>
10. <dim:field element="identifier" mdschema="dc" qualifier="uri">http://hdl.handle.net/10115/16912</dim:field>
11. <dim:field element="identifier" lang="es" mdschema="dc" qualifier="doi">10.1016/j.microc.2020.104877</dim:field>
12. <dim:field element="description" lang="es" mdschema="dc" qualifier="abstract">Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</dim:field>
13. <dim:field element="language" lang="es" mdschema="dc" qualifier="iso">eng</dim:field>
14. <dim:field element="publisher" lang="es" mdschema="dc">Elsevier</dim:field>
15. <dim:field element="rights" lang="*" mdschema="dc">Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dim:field>
16. <dim:field element="rights" lang="*" mdschema="dc" qualifier="uri">http://creativecommons.org/licenses/by-nc-nd/4.0/</dim:field>
17. <dim:field element="rights" lang="es" mdschema="dc" qualifier="accessRights">info:eu-repo/semantics/embargoedAccess</dim:field>
18. <dim:field element="subject" lang="es" mdschema="dc">Chemical modified carbon paste electrodes</dim:field>
19. <dim:field element="subject" lang="es" mdschema="dc">Mesostructured silicas</dim:field>
20. <dim:field element="subject" lang="es" mdschema="dc">2- Mercaptopyrimidine</dim:field>
21. <dim:field element="subject" lang="es" mdschema="dc">Electrochemical sensor</dim:field>
22. <dim:field element="subject" lang="es" mdschema="dc">Scopolamine</dim:field>
23. <dim:field element="subject" lang="es" mdschema="dc">Herbal teas</dim:field>
24. <dim:field element="subject" lang="es" mdschema="dc">Qu?mica</dim:field>
25. <dim:field element="subject" lang="es" mdschema="dc" qualifier="unesco">23 Qu?mica</dim:field>
26. <dim:field element="title" lang="es" mdschema="dc">2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</dim:field>
27. <dim:field element="type" lang="es" mdschema="dc">info:eu-repo/semantics/article</dim:field>
28. <dim:field element="relation" lang="es" mdschema="dc" qualifier="projectID">MCIU/AEI/FEDER, UE (RTI2018-094558-B-100, EVALKALIM</dim:field>
</dim:dim>

ese

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<europeana:record schemaLocation="http://www.europeana.eu/schemas/ese/ http://www.europeana.eu/schemas/ese/ESE-V3.4.xsd">
1. <dc:title>2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</dc:title>
2. <dc:creator>Ga??n, Judith</dc:creator>
3. <dc:creator>Morante-Zarcero, Sonia</dc:creator>
4. <dc:creator>P?rez-Quintanilla, Dami?n</dc:creator>
5. <dc:creator>Sierra, Isabel</dc:creator>
6. <dc:subject>Chemical modified carbon paste electrodes</dc:subject>
7. <dc:subject>Mesostructured silicas</dc:subject>
8. <dc:subject>2- Mercaptopyrimidine</dc:subject>
9. <dc:subject>Electrochemical sensor</dc:subject>
10. <dc:subject>Scopolamine</dc:subject>
11. <dc:subject>Herbal teas</dc:subject>
12. <dc:subject>Qu?mica</dc:subject>
13. <dc:subject>23 Qu?mica</dc:subject>
14. <dc:description>Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</dc:description>
15. <dc:date>2020-07-01T11:10:46Z</dc:date>
16. <dc:date>2020-07-01T11:10:46Z</dc:date>
17. <dc:date>2020</dc:date>
18. <dc:type>info:eu-repo/semantics/article</dc:type>
19. <dc:identifier>Microchemical Journal Volume 157, September 2020, 104877</dc:identifier>
20. <dc:identifier>0026-265X</dc:identifier>
21. <dc:identifier>http://hdl.handle.net/10115/16912</dc:identifier>
22. <dc:identifier>10.1016/j.microc.2020.104877</dc:identifier>
23. <dc:language>eng</dc:language>
24. <dc:relation>MCIU/AEI/FEDER, UE (RTI2018-094558-B-100, EVALKALIM</dc:relation>
25. <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
26. <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
27. <dc:rights>info:eu-repo/semantics/embargoedAccess</dc:rights>
28. <dc:publisher>Elsevier</dc:publisher>
29. <europeana:object>https://eciencia.urjc.es/bitstream/10115/16912/5/manuscript_%20MICROC_2020_407_ARCHIVO%20ABIERTO.pdf.jpg</europeana:object>
30. <europeana:provider>Hispana</europeana:provider>
31. <europeana:type>TEXT</europeana:type>
32. <europeana:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</europeana:rights>
33. <europeana:dataProvider>Universidad Camilo Jos?? Cela</europeana:dataProvider>
34. <europeana:isShownAt>http://hdl.handle.net/10115/16912</europeana:isShownAt>
</europeana:record>

etdms

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<thesis schemaLocation="http://www.ndltd.org/standards/metadata/etdms/1.0/ http://www.ndltd.org/standards/metadata/etdms/1.0/etdms.xsd">
1. <title>2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</title>
2. <creator>Ga??n, Judith</creator>
3. <creator>Morante-Zarcero, Sonia</creator>
4. <creator>P?rez-Quintanilla, Dami?n</creator>
5. <creator>Sierra, Isabel</creator>
6. <subject>Chemical modified carbon paste electrodes</subject>
7. <subject>Mesostructured silicas</subject>
8. <subject>2- Mercaptopyrimidine</subject>
9. <subject>Electrochemical sensor</subject>
10. <subject>Scopolamine</subject>
11. <subject>Herbal teas</subject>
12. <subject>Qu?mica</subject>
13. <description>Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</description>
14. <date>2020-07-01</date>
15. <date>2020-07-01</date>
16. <date>2020</date>
17. <type>info:eu-repo/semantics/article</type>
18. <identifier>Microchemical Journal Volume 157, September 2020, 104877</identifier>
19. <identifier>0026-265X</identifier>
20. <identifier>http://hdl.handle.net/10115/16912</identifier>
21. <identifier>10.1016/j.microc.2020.104877</identifier>
22. <language>eng</language>
23. <relation>MCIU/AEI/FEDER, UE (RTI2018-094558-B-100, EVALKALIM</relation>
24. <rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</rights>
25. <rights>info:eu-repo/semantics/embargoedAccess</rights>
26. <rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</rights>
27. <publisher>Elsevier</publisher>
</thesis>

marc

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<record schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd">
1. <leader>00925njm 22002777a 4500</leader>
2. <datafield ind1=" " ind2=" " tag="042">
  1. <subfield code="a">dc</subfield>
  </datafield>
3. <datafield ind1=" " ind2=" " tag="720">
  1. <subfield code="a">Ga??n, Judith</subfield>
  2. <subfield code="e">author</subfield>
  </datafield>
4. <datafield ind1=" " ind2=" " tag="720">
  1. <subfield code="a">Morante-Zarcero, Sonia</subfield>
  2. <subfield code="e">author</subfield>
  </datafield>
5. <datafield ind1=" " ind2=" " tag="720">
  1. <subfield code="a">P?rez-Quintanilla, Dami?n</subfield>
  2. <subfield code="e">author</subfield>
  </datafield>
6. <datafield ind1=" " ind2=" " tag="720">
  1. <subfield code="a">Sierra, Isabel</subfield>
  2. <subfield code="e">author</subfield>
  </datafield>
7. <datafield ind1=" " ind2=" " tag="260">
  1. <subfield code="c">2020</subfield>
  </datafield>
8. <datafield ind1=" " ind2=" " tag="520">
  1. <subfield code="a">Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</subfield>
  </datafield>
9. <datafield ind1="8" ind2=" " tag="024">
  1. <subfield code="a">Microchemical Journal Volume 157, September 2020, 104877</subfield>
  </datafield>
10. <datafield ind1="8" ind2=" " tag="024">
  1. <subfield code="a">0026-265X</subfield>
  </datafield>
11. <datafield ind1="8" ind2=" " tag="024">
  1. <subfield code="a">http://hdl.handle.net/10115/16912</subfield>
  </datafield>
12. <datafield ind1="8" ind2=" " tag="024">
  1. <subfield code="a">10.1016/j.microc.2020.104877</subfield>
  </datafield>
13. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Chemical modified carbon paste electrodes</subfield>
  </datafield>
14. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Mesostructured silicas</subfield>
  </datafield>
15. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">2- Mercaptopyrimidine</subfield>
  </datafield>
16. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Electrochemical sensor</subfield>
  </datafield>
17. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Scopolamine</subfield>
  </datafield>
18. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Herbal teas</subfield>
  </datafield>
19. <datafield ind1=" " ind2=" " tag="653">
  1. <subfield code="a">Qu?mica</subfield>
  </datafield>
20. <datafield ind1="0" ind2="0" tag="245">
  1. <subfield code="a">2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</subfield>
  </datafield>
</record>

mets

Descarregar XML

Se ha omitido la presentación del registro por ser demasiado largo. Si lo desea, puede descargárselo en el enlace anterior.

mods

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<mods:mods schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
1. <mods:name>
  1. <mods:namePart>Ga??n, Judith</mods:namePart>
  </mods:name>
2. <mods:name>
  1. <mods:namePart>Morante-Zarcero, Sonia</mods:namePart>
  </mods:name>
3. <mods:name>
  1. <mods:namePart>P?rez-Quintanilla, Dami?n</mods:namePart>
  </mods:name>
4. <mods:name>
  1. <mods:namePart>Sierra, Isabel</mods:namePart>
  </mods:name>
5. <mods:extension>
  1. <mods:dateAvailable encoding="iso8601">2020-07-01T11:10:46Z</mods:dateAvailable>
  </mods:extension>
6. <mods:extension>
  1. <mods:dateAccessioned encoding="iso8601">2020-07-01T11:10:46Z</mods:dateAccessioned>
  </mods:extension>
7. <mods:originInfo>
  1. <mods:dateIssued encoding="iso8601">2020</mods:dateIssued>
  </mods:originInfo>
8. <mods:identifier type="citation">Microchemical Journal Volume 157, September 2020, 104877</mods:identifier>
9. <mods:identifier type="issn">0026-265X</mods:identifier>
10. <mods:identifier type="uri">http://hdl.handle.net/10115/16912</mods:identifier>
11. <mods:identifier type="doi">10.1016/j.microc.2020.104877</mods:identifier>
12. <mods:abstract>Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</mods:abstract>
13. <mods:language>
  1. <mods:languageTerm>eng</mods:languageTerm>
  </mods:language>
14. <mods:accessCondition type="useAndReproduction">http://creativecommons.org/licenses/by-nc-nd/4.0/</mods:accessCondition>
15. <mods:accessCondition type="useAndReproduction">info:eu-repo/semantics/embargoedAccess</mods:accessCondition>
16. <mods:accessCondition type="useAndReproduction">Attribution-NonCommercial-NoDerivatives 4.0 Internacional</mods:accessCondition>
17. <mods:subject>
  1. <mods:topic>Chemical modified carbon paste electrodes</mods:topic>
  </mods:subject>
18. <mods:subject>
  1. <mods:topic>Mesostructured silicas</mods:topic>
  </mods:subject>
19. <mods:subject>
  1. <mods:topic>2- Mercaptopyrimidine</mods:topic>
  </mods:subject>
20. <mods:subject>
  1. <mods:topic>Electrochemical sensor</mods:topic>
  </mods:subject>
21. <mods:subject>
  1. <mods:topic>Scopolamine</mods:topic>
  </mods:subject>
22. <mods:subject>
  1. <mods:topic>Herbal teas</mods:topic>
  </mods:subject>
23. <mods:subject>
  1. <mods:topic>Qu?mica</mods:topic>
  </mods:subject>
24. <mods:titleInfo>
  1. <mods:title>2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</mods:title>
  </mods:titleInfo>
25. <mods:genre>info:eu-repo/semantics/article</mods:genre>
</mods:mods>

ore

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<atom:entry schemaLocation="http://www.w3.org/2005/Atom http://www.kbcafe.com/rss/atom.xsd.xml">
1. <atom:id>http://hdl.handle.net/10115/16912/ore.xml</atom:id>
2. <atom:link href="http://hdl.handle.net/10115/16912" rel="alternate" />
3. <atom:link href="http://hdl.handle.net/10115/16912/ore.xml" rel="http://www.openarchives.org/ore/terms/describes" />
4. <atom:link href="http://hdl.handle.net/10115/16912/ore.xml#atom" rel="self" type="application/atom+xml" />
5. <atom:published>2020-07-01T11:10:46Z</atom:published>
6. <atom:updated>2020-07-01T11:10:46Z</atom:updated>
7. <atom:source>
  1. <atom:generator>Archivo Abierto Institucional de la Universidad Rey Juan Carlos</atom:generator>
  </atom:source>
8. <atom:title>2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</atom:title>
9. <atom:author>
  1. <atom:name>Ga??n, Judith</atom:name>
  </atom:author>
10. <atom:author>
  1. <atom:name>Morante-Zarcero, Sonia</atom:name>
  </atom:author>
11. <atom:author>
  1. <atom:name>P?rez-Quintanilla, Dami?n</atom:name>
  </atom:author>
12. <atom:author>
  1. <atom:name>Sierra, Isabel</atom:name>
  </atom:author>
13. <atom:category label="Aggregation" scheme="http://www.openarchives.org/ore/terms/" term="http://www.openarchives.org/ore/terms/Aggregation" />
14. <atom:category scheme="http://www.openarchives.org/ore/atom/modified" term="2020-07-01T11:10:46Z" />
15. <atom:category label="DSpace Item" scheme="http://www.dspace.org/objectModel/" term="DSpaceItem" />
16. <atom:link href="https://eciencia.urjc.es/bitstream/10115/16912/1/manuscript_%20MICROC_2020_407_ARCHIVO%20ABIERTO.pdf" length="2673100" rel="http://www.openarchives.org/ore/terms/aggregates" title="manuscript_ MICROC_2020_407_ARCHIVO ABIERTO.pdf" type="application/pdf" />
17. <oreatom:triples>
  1. <rdf:Description about="http://hdl.handle.net/10115/16912/ore.xml#atom">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceItem" />
    2. <dcterms:modified>2020-07-01T11:10:46Z</dcterms:modified>
    </rdf:Description>
  2. <rdf:Description about="https://eciencia.urjc.es/bitstream/10115/16912/1/manuscript_%20MICROC_2020_407_ARCHIVO%20ABIERTO.pdf">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>ORIGINAL</dcterms:description>
    </rdf:Description>
  3. <rdf:Description about="https://eciencia.urjc.es/bitstream/10115/16912/2/license_rdf">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>CC-LICENSE</dcterms:description>
    </rdf:Description>
  4. <rdf:Description about="https://eciencia.urjc.es/bitstream/10115/16912/3/Universidad.pdf">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>LICENSE</dcterms:description>
    </rdf:Description>
  5. <rdf:Description about="https://eciencia.urjc.es/bitstream/10115/16912/4/manuscript_%20MICROC_2020_407_ARCHIVO%20ABIERTO.pdf.txt">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>TEXT</dcterms:description>
    </rdf:Description>
  6. <rdf:Description about="https://eciencia.urjc.es/bitstream/10115/16912/5/manuscript_%20MICROC_2020_407_ARCHIVO%20ABIERTO.pdf.jpg">
    1. <rdf:type resource="http://www.dspace.org/objectModel/DSpaceBitstream" />
    2. <dcterms:description>THUMBNAIL</dcterms:description>
    </rdf:Description>
  </oreatom:triples>
</atom:entry>

qdc

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<qdc:qualifieddc schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd">
1. <dc:title>2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</dc:title>
2. <dc:creator>Ga??n, Judith</dc:creator>
3. <dc:creator>Morante-Zarcero, Sonia</dc:creator>
4. <dc:creator>P?rez-Quintanilla, Dami?n</dc:creator>
5. <dc:creator>Sierra, Isabel</dc:creator>
6. <dc:subject>Chemical modified carbon paste electrodes</dc:subject>
7. <dc:subject>Mesostructured silicas</dc:subject>
8. <dc:subject>2- Mercaptopyrimidine</dc:subject>
9. <dc:subject>Electrochemical sensor</dc:subject>
10. <dc:subject>Scopolamine</dc:subject>
11. <dc:subject>Herbal teas</dc:subject>
12. <dc:subject>Qu?mica</dc:subject>
13. <dcterms:abstract>Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</dcterms:abstract>
14. <dcterms:dateAccepted>2020-07-01T11:10:46Z</dcterms:dateAccepted>
15. <dcterms:available>2020-07-01T11:10:46Z</dcterms:available>
16. <dcterms:created>2020-07-01T11:10:46Z</dcterms:created>
17. <dcterms:issued>2020</dcterms:issued>
18. <dc:type>info:eu-repo/semantics/article</dc:type>
19. <dc:identifier>Microchemical Journal Volume 157, September 2020, 104877</dc:identifier>
20. <dc:identifier>0026-265X</dc:identifier>
21. <dc:identifier>http://hdl.handle.net/10115/16912</dc:identifier>
22. <dc:identifier>10.1016/j.microc.2020.104877</dc:identifier>
23. <dc:language>eng</dc:language>
24. <dc:relation>MCIU/AEI/FEDER, UE (RTI2018-094558-B-100, EVALKALIM</dc:relation>
25. <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
26. <dc:rights>info:eu-repo/semantics/embargoedAccess</dc:rights>
27. <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
28. <dc:publisher>Elsevier</dc:publisher>
</qdc:qualifieddc>

rdf

Descarregar XML

<?xml version="1.0" encoding="UTF-8" ?>

<rdf:RDF schemaLocation="http://www.openarchives.org/OAI/2.0/rdf/ http://www.openarchives.org/OAI/2.0/rdf.xsd">
1. <ow:Publication about="oai:eciencia.urjc.es:10115/16912">
  1. <dc:title>2-Mercaptopyrimidine-functionalized mesostructured silicas to develop electrochemical sensors for a rapid control of scopolamine in tea and herbal tea infusions</dc:title>
  2. <dc:creator>Ga??n, Judith</dc:creator>
  3. <dc:creator>Morante-Zarcero, Sonia</dc:creator>
  4. <dc:creator>P?rez-Quintanilla, Dami?n</dc:creator>
  5. <dc:creator>Sierra, Isabel</dc:creator>
  6. <dc:subject>Chemical modified carbon paste electrodes</dc:subject>
  7. <dc:subject>Mesostructured silicas</dc:subject>
  8. <dc:subject>2- Mercaptopyrimidine</dc:subject>
  9. <dc:subject>Electrochemical sensor</dc:subject>
  10. <dc:subject>Scopolamine</dc:subject>
  11. <dc:subject>Herbal teas</dc:subject>
  12. <dc:subject>Qu?mica</dc:subject>
  13. <dc:description>Mesostructured silicas were synthesized and chemically functionalized with a 2- mercaptopyrimidine (MPY)-derivative. Bare and functionalized silicas (MSU-2, HMS, SBA-15, MSU-2-MPY, HMS-MPY and SBA-15-MPY) were characterized by powder X-ray diffraction, nitrogen adsorption-desorption isotherms, transmission electron and scanning electron microscopy, 29Si and 13C cross-polarization magic-angle spinning NMR spectroscopy and elemental analysis, and used to prepare modified carbon paste electrodes (CPEs). The electrodes properties were studied using potassium ferrocyanide and scopolamine as probes employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Results proved that MPY groups on the silica surface were necessary to improve the sensitivity in the voltammetric determination of scopolamine. CPE modified with HMS-MPY exhibited higher peak current toward the oxidation of scopolamine, with a well-defined oxidation peak at + 1.1 V (vs. Ag/AgCl) in DPV. This fact can be attributed to the high electroactive area of this material, with 3 D wormholelike channel structure that favored the scopolamine diffusion. Under optimum conditions, HMS-MPY-CPE exhibited a wider linearity range, from 0.9 to 200 ?M, with a detection limit of 0.3 ?M and good reproducibility by DPV. The developed sensor was successfully applied for a rapid determination of scopolamine in spiked tea and herbal tea infusion samples with good recoveries (between 83 ? 5 and 101 ? 1%).</dc:description>
  14. <dc:date>2020-07-01T11:10:46Z</dc:date>
  15. <dc:date>2020-07-01T11:10:46Z</dc:date>
  16. <dc:date>2020</dc:date>
  17. <dc:type>info:eu-repo/semantics/article</dc:type>
  18. <dc:identifier>Microchemical Journal Volume 157, September 2020, 104877</dc:identifier>
  19. <dc:identifier>0026-265X</dc:identifier>
  20. <dc:identifier>http://hdl.handle.net/10115/16912</dc:identifier>
  21. <dc:identifier>10.1016/j.microc.2020.104877</dc:identifier>
  22. <dc:language>eng</dc:language>
  23. <dc:relation>MCIU/AEI/FEDER, UE (RTI2018-094558-B-100, EVALKALIM</dc:relation>
  24. <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
  25. <dc:rights>info:eu-repo/semantics/embargoedAccess</dc:rights>
  26. <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
  27. <dc:publisher>Elsevier</dc:publisher>
  </ow:Publication>
</rdf:RDF>

xoai

Descarregar XML

Se ha omitido la presentación del registro por ser demasiado largo. Si lo desea, puede descargárselo en el enlace anterior.