高纯汞中杂质含量直接影响碲镉汞单晶材料和器件的电学性能。用普通石墨炉原子吸收法直接测定高纯汞中痕量杂质已有报道,但受基体、酸度的影响,灵敏度和精度提高受到一定限制。本工作采用真空蒸馏与塞曼效应石墨炉原子吸收法相结合对高纯汞中杂质Fe、Al、Ni、Cr、Cu、Ag和Mn等元素的测定方法进行了探讨,对此选择了最佳测定条件,方法简便、快速,灵敏度高。试验部份一仪器与试剂日立170-70塞曼效应原子吸收分光光度计(附056型双笔记录仪和自动进样仪) 日立公司的求空心阴极灯及管型石墨炉热解涂层管由上海炭素厂涂层 Impurities in high purity mercury directly affect the electrical properties of HgCdTe single crystal materials and devices. The direct determination of trace impurities in high-purity mercury by graphite furnace atomic absorption spectrometry has been reported, but the sensitivity and accuracy are limited by the influence of matrix and acidity. In this work, vacuum distillation and Zeeman effect graphite furnace atomic absorption spectrometry were used to study the determination methods of impurities such as Fe, Al, Ni, Cr, Cu, Ag and Mn in high pure mercury. Conditions, methods are simple, fast, high sensitivity. Experimental part of an instrument and reagent Hitachi 170-70 Zeeman effect atomic absorption spectrophotometer (with 056 dual-pen recorder and autosampler) Hitachi hollow hollow cathode tube and tube graphite pyrolysis coating tube Shanghai carbon plant coating