氢化物发生-非色散原子荧光光谱法同时测定金精矿中痕量铋和汞  

Simultaneous determination of trace bismuth and mercury in gold concentrates by hydride generation-nondispersive atomic fluorescence spectrometry

作　　者：马熠罡 

机构地区：[1]西北有色地质研究院测试中心,陕西西安710054

出　　处：《应用化工》2012年第9期1630-1631,1647,共3页Applied Chemical Industry

摘　　要：采用HNO3/HCl消解,以硫氰化钾掩蔽金,硫脲掩蔽杂质等手段,建立王水消解-双道氢化物发生原子荧光光谱同时测定金精矿中铋和汞含量的新方法。计算出Bi和Hg的检出限分别为5.6,0.7 mg/L,方法的检出限分别为0.13μg/g和0.012μg/g,精密度分别为1.2%和0.6%。The method of simultaneous determination of trace bismuth and mercury in gold concentrates by hydride generation-nondispersive atomic fluorescence spectrometry was proposed. The samples were diges- ted by HNOJHC1 and then some references were marked by potassium thioeyanate and thiourea. Calcu- lated the detection limits are 5, 6 mg/L and 0.7 mg/L. The method detection limits are 0.13 μg/g and 0. 012 μg/g,and the precision were 1.2% and 0.6% .resoectivelv.

关 键 词：氢化物发生原子荧光 金精矿 铋汞测定 

分 类 号：O655[理学—分析化学] O69[理学—化学]