Determination of Trace Antimony (III) in Water Samples with Single Drop Microextraction Using BPHA-[C4mim][PF6] System Followed by Graphite Furnace Atomic Absorption Spectrometry

作者：Huang, Xiaoshan; Guan, Mingxin; Lu, Zhuliangzi; Hang, Yiping^*

来源：International Journal of Analytical Chemistry, 2018, 2018: 8045324.

DOI：10.1155/2018/8045324

• LIQUID-LIQUID MICROEXTRACTION
• SOLID-PHASE MICROEXTRACTION
• VERY-LOW AMOUNTS
• IONIC LIQUID
• INORGANIC ANTIMONY
• SPECIATION
• EXTRACTION
• PRECONCENTRATION
• SEPARATION/PRECONCENTRATION
• CHROMATOGRAPHY

A new sensitive method for antimony (III) determination by graphite furnace atomic absorption spectrometry (GFAAS) has been developed by using N-benzoyl-N-phenylhydroxylamine (BPHA) and 1-butyl-3-methylimidazolium hexafluorophosphate ([C(4)mim][PF6]) single drop microextraction. The single drop microextraction (SDMM) system is more competitive compared with other traditional extraction methods. Under the optimized conditions, the limit of detection (signal-to-noise ratio is 3) and the enrichment factor of antimony (III) are 0.01 mu g.L-1 and 112, respectively. The relative standard deviation of the 0.5 mu g.L-1 antimony (III) is 4.2% (n=6). The proposed method is rather sensitive to determinate trace antimony (III) in water.

• 出版日期2018
• 单位华南理工大学