摘要
本文研究了氢氧化铝共沉淀浮选，石墨炉原子吸收光谱法测定天然地表水和饮用水中痕量Ｃｒ（Ⅲ）的方法。Ｃｒ（Ⅵ）用硫酸亚铁还原后，同样测定。
A method for determination of trace Cr(Ⅲ) in natural water and drinking water by GFAAS after separation by coprecipitationfloatation with Al(OH)3 has been studied.Cr(Ⅵ) was determined also after being reduced by FeSO4.Conditions of Cr(Ⅲ) floatation such as pH,the amount of floatation agent and coprecipitatorAluminium added,the flow rate of nitrogen gas,the floatation time etc were discussed.The influence of coexisting elements was investigated.The detection limit is 0027μg/L (n=15).For Cr(Ⅲ) concentration level of 05μg/L,the RSD is 34% and the recovery of Cr(Ⅲ)is 960～1040%.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1998年第3期354-358,共5页
Spectroscopy and Spectral Analysis
关键词
铬
氢氧化铝
分析
共沉淀
浮选
环境水样
水样
Chromium species analysis, Aluminium hydroxide, Coprecipitationflotation, GFAAS
