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Spectroscopic speciation of arsenic in water samples: a review
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DOI：10.1080/05704928.2025.2569593.png)
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Abstract
En 中文
Arsenic (As) is a significant contaminant in water. Natural processes such as weathering and geological activities potentially result in As contamination. Mining, industrial, and agricultural activities have been the leading anthropogenic causes of As in water. To comprehend the toxicity of As, speciation studies are essential, which facilitate identifying species responsible for debilitating humans’ health. Detection methods for As and its species have evolved from colorimetric techniques to contemporary spectroscopic methods such as atomic absorption spectroscopy, inductively coupled plasma–mass spectroscopy (ICP–MS), hydride generation atomic absorption spectroscopy (HG–AAS), atomic fluorescence spectroscopy (AFS), X-ray photoelectron spectroscopy, and even electrospray ionization mass spectroscopy (ESI–MS). Hyphenating methods with high performance liquid chromatography (HPLC) has drastically improved As speciation. The ICP–MS has emerged as the best method, boasting exceptional sensitivity, and overcoming interference. The present review has elucidated different spectroscopic methods for As detection and speciation in water samples with focus on increasing sensitivity. Researchers should therefore improve on the common interferences when integrating spectroscopic methods with chromatography to enhance accuracy. Additionally, innovative in-situ and remote-sensing techniques for continuous As speciation should be investigated further to maintain sample integrity and reduction in labor and time needed to generate data.
Keywords:
Spectroscopic techniques
arsenic speciation
water
pollution
contamination
review
Journal
A
IF:
5.4
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779
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