Voltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih

In this study, the measurement of Cd(II) ion by anodic stripping voltammetry technique was conducted using bentonite modified carbon paste as working electrode (CPE-B). The performance of CPE-B was compared with carbon paste electrode without bentonite (CPE) and applied for determination of Cd(II) c...

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Autores principales:	Irdhawati Irdhawati, Ni Kadak Nevi Titasia, Emmy Sahara
Formato:	article
Lenguaje:	EN ID
Publicado:	Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas 2021
Materias:	anodic stripping voltammetry cd(ii) ion carbon paste electrode bentonite chicory Chemistry QD1-999 Biochemistry QD415-436
Acceso en línea:	https://doaj.org/article/5713da682f044e68a819df879ddc3554
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spelling	oai:doaj.org-article:5713da682f044e68a819df879ddc35542021-12-02T18:47:31ZVoltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih1978-628X2476-896010.25077/jrk.v12i2.417https://doaj.org/article/5713da682f044e68a819df879ddc35542021-09-01T00:00:00Zhttp://jrk.fmipa.unand.ac.id/index.php/jrk/article/view/417https://doaj.org/toc/1978-628Xhttps://doaj.org/toc/2476-8960In this study, the measurement of Cd(II) ion by anodic stripping voltammetry technique was conducted using bentonite modified carbon paste as working electrode (CPE-B). The performance of CPE-B was compared with carbon paste electrode without bentonite (CPE) and applied for determination of Cd(II) concentration in chicory. Optimized parameters were composition of bentonite in carbon paste electrode, deposition time, deposition potential, and scan rate. Validation of measurements was observed including determination of linear concentration range, detection and quantization limits, repeatability of measurement, and percentage of recovery. The optimum composition of bentonite in CPE-B was found at 50%. Furthermore, in the optimization of measurements condition was found the optimum deposition times were 90 and 60 s, deposition potentials were -0.63 and -0.53 V, and scan rates were 15 and 20 mV/s, for CPE and CPE-B. The linear range concentration for CPE observed at 25-2000 µg/L and CPE-B was 5-50 µg/L. Limit of detection and quantization using CPE-B were 0.337 µg/L and 0.349 µg/L, lower than CPE i.e., 0.470 µg/L and 0.471 µg/L, respectively. Repeatability measurement of Cd(II) had Horwitz Ratio value less than two, and percentage of recovery was 96.73 8.33%. The level of Cd(II) ion in chicory was found at 6.98 0.40 mg/kg.Irdhawati IrdhawatiNi Kadak Nevi TitasiaEmmy SaharaDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalasarticleanodic stripping voltammetrycd(ii) ioncarbon paste electrodebentonitechicoryChemistryQD1-999BiochemistryQD415-436ENIDJurnal Riset Kimia, Vol 12, Iss 2 (2021)
institution	DOAJ
collection	DOAJ
language	EN ID
topic	anodic stripping voltammetry cd(ii) ion carbon paste electrode bentonite chicory Chemistry QD1-999 Biochemistry QD415-436
spellingShingle	anodic stripping voltammetry cd(ii) ion carbon paste electrode bentonite chicory Chemistry QD1-999 Biochemistry QD415-436 Irdhawati Irdhawati Ni Kadak Nevi Titasia Emmy Sahara Voltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih
description	In this study, the measurement of Cd(II) ion by anodic stripping voltammetry technique was conducted using bentonite modified carbon paste as working electrode (CPE-B). The performance of CPE-B was compared with carbon paste electrode without bentonite (CPE) and applied for determination of Cd(II) concentration in chicory. Optimized parameters were composition of bentonite in carbon paste electrode, deposition time, deposition potential, and scan rate. Validation of measurements was observed including determination of linear concentration range, detection and quantization limits, repeatability of measurement, and percentage of recovery. The optimum composition of bentonite in CPE-B was found at 50%. Furthermore, in the optimization of measurements condition was found the optimum deposition times were 90 and 60 s, deposition potentials were -0.63 and -0.53 V, and scan rates were 15 and 20 mV/s, for CPE and CPE-B. The linear range concentration for CPE observed at 25-2000 µg/L and CPE-B was 5-50 µg/L. Limit of detection and quantization using CPE-B were 0.337 µg/L and 0.349 µg/L, lower than CPE i.e., 0.470 µg/L and 0.471 µg/L, respectively. Repeatability measurement of Cd(II) had Horwitz Ratio value less than two, and percentage of recovery was 96.73 8.33%. The level of Cd(II) ion in chicory was found at 6.98 0.40 mg/kg.
format	article
author	Irdhawati Irdhawati Ni Kadak Nevi Titasia Emmy Sahara
author_facet	Irdhawati Irdhawati Ni Kadak Nevi Titasia Emmy Sahara
author_sort	Irdhawati Irdhawati
title	Voltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih
title_short	Voltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih
title_full	Voltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih
title_fullStr	Voltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih
title_full_unstemmed	Voltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih
title_sort	voltametri pelucutan anodik menggunakan elektroda pasta karbon termodifikasi bentonit untuk penentuan kadar ion cd(ii) dalam sayur sawi putih
publisher	Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas
publishDate	2021
url	https://doaj.org/article/5713da682f044e68a819df879ddc3554
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Voltametri Pelucutan Anodik Menggunakan Elektroda Pasta Karbon Termodifikasi Bentonit untuk Penentuan Kadar Ion Cd(II) dalam Sayur Sawi Putih

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