分光光度法测定铝镍铁永磁合金中铝、镍、钴、铜

OPTO-DIVISION MEASUREMENT FOR THE ELEMENTS OF COPPER, ALUMINIUM, NICKEL AND COBALT IN ALNI MAGNET

本文研究了铝镍铁系列永磁合金中铝、镍、钴、铜四元素的联合测定方法 ,即铝、镍、钴、铜分别以铬天青 S、丁二酮肟、亚硝基 R盐、双环己酮草酰二腙 ( BCO)作显色剂进行显色测定 ;本方法铝含量在 0 .5～ 2 0 μg/ m L,镍含量在0～ 5μg/ m L、钴、铜含在 0 .2～ 4μg/ m L范围内符合朗伯

This paper discusses the opto-division measurement methods for the elements of aluminiu, nickel, cobalt and copper in alni magnet. This method can be explicit as the colour reaction measurement with the developers of chrome azurolS, dimethylglyoxime, nitroso-R-salt and BCO. The measurement range is 0.5～2.0 μg/mL for aluminium, and 0～5 μg/mL for nickel, and 0.2～4μg/mL for cobalt and copper, which are in agreement with the laws of Lambert-Beer's law.