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首页> 外文期刊>Journal of chromatography, B. Analytical technologies in the biomedical and life sciences >Method for the determination of five toxicologically relevant arsenic species in human urine by liquid chromatography–hydride generation atomic absorption spectrometry
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Method for the determination of five toxicologically relevant arsenic species in human urine by liquid chromatography–hydride generation atomic absorption spectrometry

机译：液相色谱-氢化物发生原子吸收光谱法测定人尿中五种毒理学相关砷的方法

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摘要

An analytical method for the simultaneous quantitation of arseneous acid (As(III)), arsenic acid (As(V)), monomethylarsonic acid (MMA), dimethylarsinic acid (DMA) and trimethylarsine oxide (TMAO) in human urine by coupling of high-performance liquid chromatography with hydride generation atomic absorption spectrometry (HPLC/HG-AAS) via a flow-injection interface is presented. After arsenic species separation by anion-exchange displacement chromatography the compounds are on-line reduced to their corresponding hydrides and detected by atomic absorption spectrometry. Detection limits range from 1.1 (TMAO) to 2.6 μg/L (As(V)). The method has been applied to determine arsenic species in the urine of a volunteer before and after consumption of seafood as well as to analyse certified reference urine samples for their arsenic species content.
机译：高效液相色谱法同时定量测定人尿中砷酸（As（III）），砷酸（As（V）），一甲基ar酸（MMA），二甲基ar酸（DMA）和三甲基oxide氧化物（TMAO）的分析方法提出了一种通过流动注射接口进行氢化物发生原子吸收光谱法（HPLC / HG-AAS）的高效液相色谱法。通过阴离子交换置换色谱分离砷物质后，将化合物在线还原为相应的氢化物，并通过原子吸收光谱法进行检测。检测限范围为1.1（TMAO）至2.6μg/ L（As（V））。该方法已用于确定志愿者在食用海鲜之前和之后尿液中的砷种类，并分析了经过认证的参考尿液样品中的砷种类含量。

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