流动注射在线萃取—火焰原子吸收光谱法测定钢样中痕量钴和镍  

DETERMINATION OF TRACES OF COBALT AND NICKEL IN STEELS BY FLOW INJECTION ON-LINE EXTRACTION-FLAME ATOMIC ABSORPTION SPECTROMETRY

作　　者：龚育[1] 周俊明[1] 汤志勇[2] 张随成 金泽祥[2] 

机构地区：[1]中国地质大学武汉管理干部学院化学系,430030 [2]中国地质大学应化系

出　　处：《理化检验（化学分册）》1997年第2期59-60,共2页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：提出了一种流动注射在线萃取-火焰原子吸收光谱法测定钢样中痕量钴和镍的分析方法。研究了在线萃取流程中各项最佳参数。检出限钴为0.010μg·ml^(-1)、镍为0.021μg·ml^(-1),分析速度为20～30次·h^(-1)。经钢标准样品分析验证结果可靠。A method for the determination of traces of cobalt and nickel in steels by flow injection online extraction-flame atomic absorption spectrometry was studied. The optimum parameters of the flow injection on-line extraction system were investigated. The detection limit of the method were 0. 010μg ·ml_(-1) (Co) and 0. 021μg ·ml_(-1)(Ni). 20~30 samples aliquots can be analyzed in an hour. The method has been applied to the determination of trace cobalt and nickel in steels with satisfactory results.

关 键 词：火焰 原子吸收光谱法 钴 镍 钢样 

分 类 号：TG115.314[金属学及工艺—物理冶金] TG142.15[金属学及工艺—金属学]