【摘要】 本文先以恒电位电解法在ｃ（Ｋｃｌ）＝０．ｌｍ０ｌ／Ｌ，ｃ（Ｈｃｌ）＝０．２ｍｏｌ／Ｌ介质液中，将微量金电解富集在特制石墨电极上，再用背景为内标的原子发射光谱法对金进行测定。本分析方法的回收率为９７．１－１０６％，变动系数为８．５５％，相对误差为－１．９６一２．２１％。操作简便快速，测定结果准确可靠更多还原

【Abstract】 In the medium of C(KCl)=0.1mol/Land C(HCl)20.2 mol/L,trace gold was elec- trOdeposited on a specific graphite electrode under constant potential,then determined by spectro- chemical method with the background as internal standard.Under the optimum conditions,the re- coveries for gold are between 97.1%and l06%,the coefficient of variation is 8.55%,and the relative errors range from-1.96%to 2.21%。 This is a method connecting electrochemical sep- aration and preconcentration with the spectrochemical determination,and it is both rapid,accurate and pratical, effective.更多还原