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进一步改进了痕量金的测定方法及分离方法:对孔雀绿分光光度测定金的方法改用醋酸丁酯代替毒性大的苯类作草取剂,对常用的乙醚萃取分离金的方法改用醋酸丁酯代替麻醉性的乙醚,在4.5N 盐酸中苹取分离痕量金,可与大量的 Pt、Pd、Rh、Ir、Cu 及 Ni 等元素分离,进入有机相(醋酸丁酯)中的金可随即加孔雀绿显色测定。本法简化了操作、缩短了分析时间、选择性高、在0～12微克金范围内符合比尔定律,克分子吸光系数为8.6×10~4,可直接测定铂、钯、铑、铱、铜及其合金中痕量的金。
Further improve the determination of trace amounts of gold and separation methods: the method for the determination of gold malachite green with butyl acetate instead of toxic benzene for herbicides, common ether extraction and separation of gold method using acetic acid Butyl ester instead of narcotic ether, the extraction of trace gold in 4.5N hydrochloric acid by pick-up, with a large number of Pt, Pd, Rh, Ir, Cu and Ni and other elements into the organic phase (butyl acetate) Can then add malachite green color determination. The method simplifies the operation, shortens the analysis time and has high selectivity. It complies with Bill’s law in the range of 0-12 microgram gold with an extinction coefficient of 8.6 × 10 -4. It can directly measure the contents of platinum, palladium, rhodium, iridium, copper And its alloys trace of gold.