本文叙述了用活性炭色层柱分离、亚硫酸钠解吸、TMK-异戊醇萃取比色测定痕量金的方法。采用了以硫酸钴、铬酸钾和硫酸铜等无机盐配制模拟标准系列,可以长期使用。本法操作简单,快速,成本低,工效高。一人一天可以分析30个以上试样,能测定出1×10~(-3)ppm的金含量,适用于地质普查金矿中大批试样的分析。 This paper describes a method for the determination of trace gold by colorimetric column chromatography on activated carbon, desorption by sodium sulfite and extraction by TMK-isoamyl alcohol. Using a series of inorganic salts such as cobalt sulfate, potassium chromate and copper sulfate to simulate the standard series, can be long-term use. This method is simple, fast, low cost and high efficiency. A person can analyze more than 30 samples a day, can determine the gold content of 1 × 10 ~ (-3) ppm, suitable for a large number of geological analysis of gold samples in the analysis.