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Updated: May 29, 2025
08:21
Determination of Inorganic Arsenic in a Wide Range of Food Matrices using Hydride Generation - Atomic Absorption Spectrometry.
Published on: September 1, 2017
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Analytical techniques for arsenic speciation.
Yu-Ki Tanaka1, Kemmu Matsuhashi2, Yasumitsu Ogra2
1Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo, Chiba, 260-8675, Japan. yu-ki.tanaka@chiba-u.jp.
Summary
Arsenic contamination poses significant health risks, necessitating accurate speciation. Advanced techniques like LC-ICP-MS and emerging portable devices offer sensitive and cost-effective arsenic analysis for environmental and public health protection.
Area of Science:
- Environmental Science
- Analytical Chemistry
- Public Health
Background:
- Arsenic is a Group 1 carcinogen, and its toxicity depends on its chemical form.
- Precise quantification and speciation of arsenic are crucial due to varying toxicity levels of different arsenic species.
Purpose of the Study:
- To review and compare various analytical techniques for arsenic speciation.
- To highlight the importance of accurate arsenic analysis in environmental and public health contexts.
Main Methods:
- Liquid chromatography coupled with inductively coupled plasma mass spectrometry (LC-ICP-MS) for high sensitivity and accuracy.
- Gas chromatography-mass spectrometry (GC-MS) after derivatization.
- Colorimetric assays, adsorption techniques, hydride generation, and voltammetry for inorganic arsenic speciation.
- Microfluidic and electrochemical devices for rapid, portable, and in situ analysis.
Main Results:
- LC-ICP-MS is considered the gold standard for comprehensive arsenic speciation.
- GC-MS is effective for detecting arsenic species post-derivatization.
- Simpler, cost-effective methods exist for inorganic arsenic speciation.
- Emerging technologies offer rapid and portable solutions for on-site detection.
Conclusions:
- Accurate arsenic speciation is essential for assessing environmental and public health risks.
- A range of analytical techniques are available, from gold standards like LC-ICP-MS to rapid, cost-effective emerging technologies.
- Advanced methods facilitate precise detection and speciation of arsenic in various environmental samples.
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