浮选原子吸收分光光度法同时测定废水中的金银

来源期刊：中南大学学报(自然科学版)1991年第5期

论文作者：任凤莲 吴立新

文章页码：582 - 587

关键词：痕量金银的测定; 溶剂浮选法; 原子吸收分光光度法

Key words：gold and silver; flotation; atomic absorption spectrophotometric

摘    要：在HCL-KI介质中,以溴化十六烷基吡啶(CPB)为捕收剂,甲基异丁酮(MIBK)为溶剂,采用溶剂浮选原子吸收分光光度法同时测定废水中的痕量金银。其中银的线性范围是0～10μg/5mL,金的线性范围是0～20μg/5mL,金银在工业废水中的实际检测浓度可低至1μg/L和0.2μg/L。

Abstract: A metbod for the simultaneous determination of trace gold and silver has beendeveloped with solvent flotation-atomic absorption spectroscopy in HCl-KI me-dium of CPB as a collector, and MIBK as a solvent. The linear ranges of both Auand Ag are 0～20 μg/5 mL, 0～10 μg/5 mL respectively. This method can deter-mine a trace level of gold at 1 μg/L and silver at 0. 2 μg/L for 500 mL of wastewater sample. The proposed flotation-atomic absorption spectrophotometric wasapplied to the recovery test of gold and silver added to waste water withsatisfactory results.