本文在文献〔１〕的基础上，利用丁二酮肟将试液中的大部分镍沉淀，加入三氯甲烷捕集沉淀，用原子吸收法测量水相中的残留镍，从而求出试样中的镍含量。由于试液无须放置过夜，缩短了分析时间，而测量的精密度不变。１实验部分１．１仪器和试剂ＷＦ－５型单光束原子吸收分... Based on the literature [1], most of the nickel in the test solution was precipitated by dimethylglyoxime, chloroform was added to collect the precipitate, and residual nickel in the aqueous phase was measured by atomic absorption spectrometry to obtain a sample In the nickel content. As the test solution does not need to be placed overnight, shorten the analysis time, and measurement precision unchanged. 1 Experimental 1.1 Instruments and Reagents WF-5 single beam atomic absorption ...