摘要
提出了双毛细管喷雾-氢化物发生火焰原子吸收光谱法测定汞的新方法,即在5%HCl(含一定量KBH4、硫脲、抗坏血酸)介质中测定硫化锌精矿中0.00X%～0.X%的汞;在4%H2SO4(含一定量KBH4、硫脲、抗坏血酸)介质中测定硫酸产品中≥Xmg/L的汞。所拟方法快速、简便、准确,样品加标回收率在90%～110%,可用于湿法炼锌及制硫酸生产工艺中微量汞的生产监控分析,效果良好。
A new method is introduced to determine the mercury, namely by means of flame atomic absorption spectrometry of dual-capillary spray-hydride generation, i. e, mercury in concentrated ore of ZnS is determined from 0.00X% to 0. X% in the medium of 5% HCl （with a certain amount KBH4, thiourea, ascorbic acid） , and X mg/L of mercury in sulfuric acid products is determined in medium of 4% HESO4 （with a certain amount KBH4 , thiourea, ascorhic acid） too. The proposed method is fast, simple, accurate, and standard sample recovery is 90% - 110% , which can be used for monitoring analysis of trace mercury in production process of hydrometallurgy zinc and sulfuric acid, the results are perfect.
出处
《云南冶金》
2009年第4期51-54,共4页
Yunnan Metallurgy
关键词
双毛细管喷雾
氢化物
原子吸收光谱法
汞
dual-capillary spray
hydride
atomic absorption spectrometry
mercury
