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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][PF 6 ]) 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  μ g·L −1  and 112, respectively. The relative standard deviation of the 0.5  μ g·L −1  antimony (III) is 4.2% (n=6). The proposed method is rather sensitive to determinate trace antimony (III) in water.

international journal of analytical chemistry

Determination of Trace Antimony (III) in Water Samples with Single Drop Microextraction Using BPHA-[C<sub>4</sub>mim][PF<sub>6</sub>] System Followed by Graphite Furnace Atomic Absorption Spectrometry

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

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