TY - JOUR

T1 - Simultaneous Heavy Metal Determination in Mussels by Anodic Stripping Voltammetry (ASV) Using Thick Film Modified Graphite Electrodes

AU - Скиба, Татьяна Васильевна

AU - Медведев, Н.С.

AU - Цыганкова, Альфия Рафаэльевна

AU - Панасенко, Юрий Васильевич

N1 - This work was supported by the Ministry of Science and Education of the Russian Federation, project CITiS number «121031700315-2».

PY - 2024

Y1 - 2024

N2 - Heavy metals are potent polluters of marine ecosystems. Consumption of contaminated seafood may lead to adverse health effects. In this work, thick film modified graphite sensors are used as working electrodes for the simultaneous determination of copper, lead, cadmium and zinc in mussel tissue from the Sea of Japan. The samples were prepared by HNO3 wet mineralization and analyzed in pH 4 acetate buffer by anodic stripping voltammetry. The analytical signal was studied as a function of accumulation potential, accumulation time, and sweep rate to determine the optimal electrolysis conditions. Standard addition method was used to evaluate the heavy metal concentrations to minimize matrix effects. The developed procedure is rapid, inexpensive, and reproducible, and has high selectivity and low limits of detection for the analytes. The relative standard deviations for the concentrations of Cu, Pb, Cd, and Zn are 13%, 21%, 7.7%, and 15%, respectively. The accuracy was confirmed by comparing the results with those obtained by inductively coupled plasma–optical emission spectrometry (ICP-OES) and inductively coupled plasma–mass spectrometry (ICP-MS).

AB - Heavy metals are potent polluters of marine ecosystems. Consumption of contaminated seafood may lead to adverse health effects. In this work, thick film modified graphite sensors are used as working electrodes for the simultaneous determination of copper, lead, cadmium and zinc in mussel tissue from the Sea of Japan. The samples were prepared by HNO3 wet mineralization and analyzed in pH 4 acetate buffer by anodic stripping voltammetry. The analytical signal was studied as a function of accumulation potential, accumulation time, and sweep rate to determine the optimal electrolysis conditions. Standard addition method was used to evaluate the heavy metal concentrations to minimize matrix effects. The developed procedure is rapid, inexpensive, and reproducible, and has high selectivity and low limits of detection for the analytes. The relative standard deviations for the concentrations of Cu, Pb, Cd, and Zn are 13%, 21%, 7.7%, and 15%, respectively. The accuracy was confirmed by comparing the results with those obtained by inductively coupled plasma–optical emission spectrometry (ICP-OES) and inductively coupled plasma–mass spectrometry (ICP-MS).

KW - Biomonitoring

KW - Mussels

KW - film graphite electrode

KW - heavy metals

KW - stripping voltammetry

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85158154664&origin=inward&txGid=5b6c67adef0c18b07bc199f018784158

UR - https://www.mendeley.com/catalogue/f6c72b51-697d-3978-8cab-ef22e2a7042a/

U2 - 10.1080/00032719.2023.2203932

DO - 10.1080/00032719.2023.2203932

M3 - Article

VL - 57

SP - 237

EP - 249

JO - Analytical Letters

JF - Analytical Letters

SN - 0003-2719

IS - 2

ER -