氢化物发生-四通道原子荧光光谱法同时测定高纯金中的痕量铋、锑、硒和碲  

Simultaneous determination of bismuth,antimony,selenium and tellurium in high-purity gold by hydride generation-four-channel non-dispersive atomic fluorescence spectrometry

作　　者：李君雅[1] 倪迎瑞[1,2] 李海涛[1,2] 张圣杰[1,2] 薛振宇[1,2] 

机构地区：[1]西北有色地质研究院,陕西西安710054 [2]陕西黄金集团西安秦金有限责任公司,陕西西安710054

出　　处：《应用化工》2013年第8期1538-1540,1547,共4页Applied Chemical Industry

摘　　要：用乙酸乙酯萃取分离金,分液还原后应用氢化物发生-四通道原子荧光光谱法测定高纯金中的痕量铋、锑、硒和碲。在最佳条件下,方法对铋、锑、硒和碲的检出限分别为0.04,0.05,0.03,0.03 ng/mL(3δ);测定精密度(RSD)分别为0.98%,0.93%,0.94%,0.99%(对10 ng/mL Bi、Sb、Se和Te混合标准,n=7)。用所建立的方法对实际样品中的铋、锑、硒和碲进行了同时测定,测定结果与用标准方法测定所得结果之间无明显差异,各元素的加标回收率在95%～105%。结果表明,此方法能同时精确测定高纯金中的痕量铋、锑、硒和碲的量,且检出限较低,测定结果与国家标准方法一致。Using ethyl acetate extraction and separation of gold,when the liquid after reduction,the simultaneous determination of bismuth,antimony,selenium and tellurium in high-purity gold sample using hydride generation-four-channel non-dispersive atomic fluorescence spectrometry has been developed.Under optimal conditions,the detection limits for Bi,Sb,Se and Te were determined to be 0.04,0.05,0.03,0.03 ng/mL（3δ）,respectively.The precisions for 7 replicate determinations at the 10 ng/mL of Bi,Sb,Se and Te were 0.98%,0.93%,0.94% and 0.99%（RSD）,respectively.The proposed method was successfully applied to the simultaneous determination of Bi,Sb,Se and Te in high-purity gold samples and compared with the standard methods,and recovery ratio of various elements in the range of 95%～105%.All the results of the present method were statistically equivalent to the results of the standard method.

关 键 词：高纯金 铋、锑、硒、碲 四通道无色散原子荧光光谱 同时测定 

分 类 号：O657.31[理学—分析化学]