SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPER

ABSTRACT Differential pulse anodic stripping voltammetry, method used for simultaneous determination of zinc, copper and lead with screen printed electrode of carbon nanotubes modified with gold nanoparticles was investigated. The results indicate that a simultaneous identification and quantificatio...

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Autor principal:	Gamboa,Juan C. M.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2020
Materias:	Gold Nanoparticles Screen-Printed Electrode Carbon Nanotubes
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072020000204842
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spelling	oai:scielo:S0717-970720200002048422020-08-14SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPERGamboa,Juan C. M. Gold Nanoparticles Screen-Printed Electrode Carbon Nanotubes ABSTRACT Differential pulse anodic stripping voltammetry, method used for simultaneous determination of zinc, copper and lead with screen printed electrode of carbon nanotubes modified with gold nanoparticles was investigated. The results indicate that a simultaneous identification and quantification of zinc, lead and copper is possible at −0.6 V, −0.26 V and 0.16 V respectively. The maximum current was linearly dependent on the concentration of Zn2+, Pb2+ and Cu2+, thus allowing the construction of analytical curves, being: -Ip (A) = 0.08 + 0.214 [Zn2+ (g L−1)] in a range of 9.9 to 120 µg L−1 with an R2 = 0.993; -Ip (A) = −1.06 + 0.240 [Pb2+ (µg L−1)] in a range of 9.9 to 120 µg L−1 with an R2 = 0.998; -Ip (A) = −10.93 + 15.16 [Cu2+ (µg L−1)] in a range of 0.99 to 12 µg L−1 with an R2 = 0.998. The limits of detection and quantification were estimated between 1.0 - 3.5 µg L−1 for Zn2+, 1.5 - 5.0 µg L−1 for Pb2+ and 0.1 - 0.33 µg L−1 for Cu2+. An integral, selective and reliable system for simultaneous determination of heavy metals was achieved, which may have applications in field monitoring for environmental use and public health.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.65 n.2 20202020-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072020000204842en10.4067/S0717-97072020000204842
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Gold Nanoparticles Screen-Printed Electrode Carbon Nanotubes
spellingShingle	Gold Nanoparticles Screen-Printed Electrode Carbon Nanotubes Gamboa,Juan C. M. SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPER
description	ABSTRACT Differential pulse anodic stripping voltammetry, method used for simultaneous determination of zinc, copper and lead with screen printed electrode of carbon nanotubes modified with gold nanoparticles was investigated. The results indicate that a simultaneous identification and quantification of zinc, lead and copper is possible at −0.6 V, −0.26 V and 0.16 V respectively. The maximum current was linearly dependent on the concentration of Zn2+, Pb2+ and Cu2+, thus allowing the construction of analytical curves, being: -Ip (A) = 0.08 + 0.214 [Zn2+ (g L−1)] in a range of 9.9 to 120 µg L−1 with an R2 = 0.993; -Ip (A) = −1.06 + 0.240 [Pb2+ (µg L−1)] in a range of 9.9 to 120 µg L−1 with an R2 = 0.998; -Ip (A) = −10.93 + 15.16 [Cu2+ (µg L−1)] in a range of 0.99 to 12 µg L−1 with an R2 = 0.998. The limits of detection and quantification were estimated between 1.0 - 3.5 µg L−1 for Zn2+, 1.5 - 5.0 µg L−1 for Pb2+ and 0.1 - 0.33 µg L−1 for Cu2+. An integral, selective and reliable system for simultaneous determination of heavy metals was achieved, which may have applications in field monitoring for environmental use and public health.
author	Gamboa,Juan C. M.
author_facet	Gamboa,Juan C. M.
author_sort	Gamboa,Juan C. M.
title	SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPER
title_short	SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPER
title_full	SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPER
title_fullStr	SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPER
title_full_unstemmed	SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPER
title_sort	screen printed electrode of carbon nanotubes modified with gold nanoparticles for simultaneous determination of zinc, lead and copper
publisher	Sociedad Chilena de Química
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072020000204842
work_keys_str_mv	AT gamboajuancm screenprintedelectrodeofcarbonnanotubesmodifiedwithgoldnanoparticlesforsimultaneousdeterminationofzincleadandcopper
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SCREEN PRINTED ELECTRODE OF CARBON NANOTUBES MODIFIED WITH GOLD NANOPARTICLES FOR SIMULTANEOUS DETERMINATION OF ZINC, LEAD AND COPPER

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