Simultaneous Separation of Sb(III) and Sb(V) by High Performance Liquid Chromatography (HPLC) – Inductively Coupled Plasma – Mass Spectrometry (ICP-MS) with Application to Plants, Soils, and Sediments

Zhaoxue Zhanga Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, China;b Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, ChinaView further author information

Yi Lua Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, China;b Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, ChinaView further author information

Haipu Lia Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, China;b Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, ChinaCorrespondence[email protected] [email protected]
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Nan Zhanga Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, China;b Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, ChinaView further author information

Junfei Caoa Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, China;b Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, ChinaView further author information

Bo Qiua Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, China;b Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, ChinaView further author information

Zhaoguang Yanga Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha, China;b Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, ChinaCorrespondence[email protected] [email protected]
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Abstract

The simultaneous separation and determination of inorganic trivalent antimony Sb(III) and pentavalent antimony Sb(V) in plant, soil, and sediment samples was carried out by high performance liquid chromatography – inductively coupled plasma – mass spectrometry (HPLC-ICP-MS). The chromatographic conditions (composition and concentration of competing ion, pH value and flow rate of mobile phase) and the operating parameters for inductively coupled plasma – mass spectrometry were optimized by single factor experiments. The separation of the Sb species was achieved within 6 min using the optimized chromatographic conditions. The detection limits of the method were 0.016 μg/L and 0.021 μg/L for Sb(III) and Sb(V), respectively. The retention times of Sb(V) and Sb(III) were 2.7 min and 4.5 min, respectively. The relative standard deviations for replicate measurements (n = 6) of low (5 μg/L), medium (20 μg/L), and high (40 μg/L) concentrations of Sb(III) and Sb(V) were less than 4%. The results of spiking and recovery experiments for the extracting solutions of soil, sediments, and plants showed that the spiked recoveries of the two species ranged from 92% to 103%. This method has been used to determine the antimony species in extracts of environmental samples.

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This work was financially supported by the Special Fund for Agro-Scientific Research in the Public Interest of China (Grant Number 201503108), Science and Technology Project of Hunan Province (Grant Number 2017WK2091), and Hunan Provincial Innovation Foundation for Postgraduate (Grant Number CX20190099).

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Simultaneous Separation of Sb(III) and Sb(V) by High Performance Liquid Chromatography (HPLC) – Inductively Coupled Plasma – Mass Spectrometry (ICP-MS) with Application to Plants, Soils, and Sediments

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Simultaneous Separation of Sb(III) and Sb(V) by High Performance Liquid Chromatography (HPLC) – Inductively Coupled Plasma – Mass Spectrometry (ICP-MS) with Application to Plants, Soils, and Sediments

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