常量金的测定以火试金法或重量法居多,但需特殊设备,操作烦锁;碘量法对电镀液分析应用较多,该法主要缺点是选择性欠佳,对少量钯的存在难以给出满意的结果。近年来,有人应用氢醌——重铬酸钾法或莫尔盐——重铬酸钾法测定金,但对共存的锑,钯等干扰元素仍需萃 The determination of constant gold to fire test method or gravimetric method mostly, but special equipment, operation annoying lock; Iodometric method for electroplating solution analysis more, the main drawback of this method is poor selectivity, the presence of a small amount of palladium is difficult Give a satisfactory result In recent years, some people use the hydroquinone-potassium dichromate method or the Mohr salt-potassium dichromate method for the determination of gold, but the coexistence of antimony, palladium and other interference elements still need extraction