作者: Huyen Thu Luu , Thao Thi Ta , Loi Duc Vu , Thuong Thi Kim Nguyen , Giang Thi Huong Le
DOI: 10.1155/2021/8888879
关键词: Electrode 、 Detection limit 、 Mass spectrometry 、 Mercury (element) 、 Deposition (phase transition) 、 Chemistry 、 Anodic stripping voltammetry 、 Cold vapour atomic fluorescence spectroscopy 、 Peak current 、 Analytical chemistry
摘要: The anodic stripping voltammetry (ASV) was investigated to determine total mercury in solid samples using a gold electrode. deposited on the electrode preconcentration step. oxidation peak of irreversible. optimal conditions procedure were found be as follows: 0.05 mol L−1 HCl solution, deposition potential −0.5 V vs. Ag/AgCl/KCls, time 40 s, and sweep rate 0.04 V s−1. Under conditions, current showed linear dependence Hg2+ concentration range from 0.01 0.1 mg l−1. detection limit quantification 4.28 µg L−1 12.98 µg L−1, respectively. mean recovery relative standard deviation 91.2% 2.4% (n = 9). successfully applied for determining collected Hanoi light bulb warehouse—The Rang Dong Light Source Vacuum Flask JSC. results compared with cold vapor atomic absorption spectrometry (CV-AAS).