دورية أكاديمية

Electrochemical interference study of manganese and iron by multiplex method and the application for manganese analysis in drinking water.

التفاصيل البيبلوغرافية
العنوان: Electrochemical interference study of manganese and iron by multiplex method and the application for manganese analysis in drinking water.
المؤلفون: Shi, Yichun, Pei, Yu, Lamothe, Nicholas, Macdonald, Kirsten, Payne, Sarah Jane, She, Zhe
المصدر: Electrochemical Science Advances; Jun2024, Vol. 4 Issue 3, p1-12, 12p
مصطلحات موضوعية: DRINKING water analysis, DRINKING water, MANGANESE, MULTIPLEXING, IRON, WATER sampling
مستخلص: Manganese is an emerging concern in drinking water, due to its potential health and aesthetic effects. Although accurate and sensitive, spectroscopic techniques for Mn2+ detection are costly and not capable of rapid detection. Electrochemical methods, such as cathodic stripping voltammetry, have been intensively explored as portable low‐cost methods for Mn2+ detection. Challenges of reliability and matrix interference are difficult to overcome with current electrochemical methods. Among the interference reagents, Fe2+ is one of the biggest challenges for Mn2+ detection. Herein, a new method based on multiplex chronoamperometry at potentials between 0.9 and 1.4 V by a multichannel potentiostat is explored for its ability for interference resistance and applicability for Mn2+ detection in real drinking water samples. Compared to conventional one‐channel electrochemical techniques, the multiplex method generates a reliable pattern that is unique to the sample components. The interference between Mn2+ and Fe2+ is investigated and the results are promising even at 100:1 Fe2+:Mn2+ concentrations. The detection limit determined for the multiplex method was 25.3 μM, and the optimum recovery rate in a real drinking water sample was 99.8%. [ABSTRACT FROM AUTHOR]
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قاعدة البيانات: Complementary Index
الوصف
تدمد:26985977
DOI:10.1002/elsa.202300011