微波消解-泡塑富集原子吸收法测定矿样中的金

Determination of Gold in Core Sample by Microwave Digestion and Bubble Sufuji AAS

该方法应用王水溶解矿样,泡沫塑料材料富集金;载金泡沫塑料采用在密闭条件,加入王水,采用微波消解模式;矿样溶解完毕定容后,用火焰原子吸收法测定;检出限为0.10 mg/L。此方法测定可检测含金量在1g/t以上的矿样,测定结果准确、可靠,该方法再现性好、加标回收率为97.1%～102%,连续测定10个平行样结果的相对标准偏差均小于3.0%。

Tthe method is applied aqua regia dissolving ore sample,the foam material enrichment of gold;Carry gold foam used in airtight condition,to join the aqua regia,using microwave digestion mode;The capacity after the core sample is dissolved with FAAS;Detection limit of 0.10 mg/L.The method for determining value can be detected in more than 1 g/t ore sample,the determination results are accurate and reliable,the method,good reproducibility and recovery was 97.1%~97.1%,parallel to the continuous determination of 10 sample results,the relative standard deviation is less than 3.0%.