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用于水中Pb(II)电化学检测的生物聚合物修饰碳糊电极

Biopolymer-Modified Carbon Paste Electrode for the Electrochemical Detection of Pb(II) in Water.

作者信息

Ifguis Ousama, Moutcine Abdelaziz, Laghlimi Charaf, Ziat Younes, Bouhdadi Rachid, Chtaini Abdelilah, Moubarik Amine, Mbarki Mohamed

机构信息

Engineering Laboratory in Chemistry and Physics of Matter, Faculty of Science and Technics, Sultan Moulay Slimane University, Beni Mellal, Morocco.

Electrochemistry and Molecular Inorganic Materials Team, Sultan Moulay Slimane University, Faculty of Sciences and Technology in Beni-Mellal, Beni Mellal, Morocco.

出版信息

J Anal Methods Chem. 2022 Jan 31;2022:5348246. doi: 10.1155/2022/5348246. eCollection 2022.

DOI:10.1155/2022/5348246
PMID:35140993
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8820895/
Abstract

During the present study, biopolymer lignin was extracted, in particular, from sugar beet pulp (molasses) from the Tadla region (224 km from Marrakech, Morocco). The lignin was characterized by infrared spectroscopy (FTIR) and thermogravimetric TG/DTA analysis and then used as a modifier to enhance the electroanalytical detection of heavy metal ion traces. The performance of the lignin/CPE sensor to detect lead (II) was studied by cyclic voltammetry (CV) and square-wave voltammetry in 0.3 mol L NaCl. With optimized experimental parameters, the lignin/CPE sensor developed has a minimum detection limit of 2.252.10 M for Pb (II). The proposed working electrode has been successfully applied for the coanalysis of Pb (II) in tap water with good results.

摘要

在本研究中，特别是从塔德拉地区（距摩洛哥马拉喀什224公里）的甜菜粕（糖蜜）中提取了生物聚合物木质素。通过红外光谱（FTIR）和热重TG/DTA分析对木质素进行了表征，然后将其用作改性剂以增强对重金属离子痕量的电分析检测。通过循环伏安法（CV）和方波伏安法在0.3 mol/L NaCl中研究了木质素/CPE传感器检测铅（II）的性能。在优化的实验参数下，所开发的木质素/CPE传感器对Pb（II）的最低检测限为2.25×10⁻⁷ M。所提出的工作电极已成功应用于自来水中Pb（II）的同时分析，结果良好。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/b5a3f3d4f719/JAMC2022-5348246.009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/a1e7afedcf65/JAMC2022-5348246.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/8e19b6b43bdb/JAMC2022-5348246.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/8dcc1f430954/JAMC2022-5348246.003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/5479e094c8db/JAMC2022-5348246.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/0bdf6b90dd4f/JAMC2022-5348246.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/6dfe86831baf/JAMC2022-5348246.008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/b5a3f3d4f719/JAMC2022-5348246.009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/a1e7afedcf65/JAMC2022-5348246.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/8e19b6b43bdb/JAMC2022-5348246.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/8dcc1f430954/JAMC2022-5348246.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/f201cb0fd42f/JAMC2022-5348246.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/1910f9097264/JAMC2022-5348246.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/5479e094c8db/JAMC2022-5348246.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/0bdf6b90dd4f/JAMC2022-5348246.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/6dfe86831baf/JAMC2022-5348246.008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/85a4/8820895/b5a3f3d4f719/JAMC2022-5348246.009.jpg

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