Huang Xiaoshan, Guan Mingxin, Lu Zhuliangzi, Hang Yiping
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
Int J Anal Chem. 2018 Aug 1;2018:8045324. doi: 10.1155/2018/8045324. eCollection 2018.
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 ([Cmim][PF]) 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 g·L and 112, respectively. The relative standard deviation of the 0.5 g·L antimony (III) is 4.2% (n=6). The proposed method is rather sensitive to determinate trace antimony (III) in water.
通过使用N-苯甲酰基-N-苯基羟胺（BPHA）和1-丁基-3-甲基咪唑六氟磷酸盐（[Cmim][PF]）单滴微萃取，开发了一种通过石墨炉原子吸收光谱法（GFAAS）测定锑（III）的新灵敏方法。与其他传统萃取方法相比，单滴微萃取（SDMM）系统更具竞争力。在优化条件下，锑（III）的检测限（信噪比为3）和富集因子分别为0.01μg·L和112。0.5μg·L锑（III）的相对标准偏差为4.2%（n=6）。该方法对测定水中痕量锑（III）相当灵敏。
