我们曾报导了钨丝恒电位电解电热原子吸收法测定微量金。该方法虽具有一定特点,但铜有严重干扰,铁有较大干扰,当其含量高时得不到吸收信号。为适于测定各种类型的含金岩矿,对该方法做了如下改进:①改进NF101型定时电解富集仪,研制出NF,102型多功能电解富集仪,增加了定时恒电位阳极溶出及定时恒电流电沉积功能。②电解沉积金以后,将钨丝改作阳极进行恒电位溶出,消除铜的严重 We have reported the determination of trace gold by electrothermal atomic absorption spectrometry with tungsten potentiostatic electrolysis. Although this method has certain characteristic, but the copper has the serious interference, the iron has the bigger disturbance, when its content is high can not obtain the absorption signal. For the determination of various types of gold-bearing rock, the method has been improved as follows: ① NF101 improved timing electrolysis enrichment instrument developed NF, 102-type multi-function electrolytic enrichment meter, an increase of constant potential anode Dissolution and timing constant current electrodeposition function. ② after the electrolytic deposition of gold, the tungsten wire as the anode for constant potential dissolution, to eliminate the serious copper