Salt saturated single drop microextraction of gold from water samples and its determination by graphite furnace atomic absorption spectrometry

2014 ◽  
Vol 29 (5) ◽  
pp. 875 ◽  
Author(s):  
Massoud Kaykhaii ◽  
Saeid Noorinejad
2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaoshan Huang ◽  
Mingxin Guan ◽  
Zhuliangzi Lu ◽  
Yiping Hang

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 ([C4mim][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 μg·L−1 and 112, respectively. The relative standard deviation of the 0.5 μg·L−1 antimony (III) is 4.2% (n=6). The proposed method is rather sensitive to determinate trace antimony (III) in water.


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