建立了聚乙烯塑料瓶封闭水浴加热,王水溶解,以铼作内标,电感耦合等离子体质谱法测定地质样品中痕量金。结果表明,样品中的金可分解完全,节约了成本、减少了环境污染。方法经国家一级标准物质验证,结果与标准值相符。对实际样品测定的方法相对标准偏差(RSD,n=9)为4.1%～6.7%。方法检出限为0.12ng/g,方法简便快速,适用于地质样品的批量分析。 A polyethylene plastic bottle was set up in a closed water bath to heat and dissolve the aqua regia. The rhenium was used as the internal standard, and the trace gold in the geological samples was determined by inductively coupled plasma mass spectrometry. The results show that the sample gold can be completely decomposed, saving costs and reducing environmental pollution. The method is verified by the national first-class standard material and the result is consistent with the standard value. The relative standard deviation (RSD, n = 9) for the actual sample was 4.1% -6.7%. The detection limit of the method is 0.12ng / g. The method is simple and rapid and can be applied to the batch analysis of geological samples.