偶氮氯膦-mA分光光度法测定合金中稀土总量  

Spectrophotometric Determination of ∑RE in Alloy Steel with CPA-mA

作　　者：付吉义[1] 

机构地区：[1]哈尔滨锅炉厂有限责任公司,黑龙江哈尔滨150046

出　　处：《锅炉制造》2007年第2期70-72,共3页Boiler Manufacturing

摘　　要：在pH0.7～1．8的酸性溶液中，稀土元素和偶氮氯膦-mA生成紫色络合物，这个反应体系可以用来进行合金钢中稀土元素的比色测定，溶液中共存离子铬、锰、镍、铁等对分析有干扰，通过对试样进行特殊处理，可去除干扰元素，然后直接进行比色，结果满意。Purple multi - component complex of ∑ Re and CPA - mA forms in the solution of PH0.7 - 1.8, this reaction system can be used for spectrophotometric determination of ∑ Re in steel alloy, coexisted ions such as Cr^6＋ ,Mn^2＋ ,Ni^2＋ ,Fe^3＋ interfere determination. Putting away these interfering elements though special processing,we can then nesslerize directly. The results are satisfying.

关 键 词：稀土 偶氮氯膦-MA 比色测定 干扰 合金 总量 

分 类 号：TG115[金属学及工艺—物理冶金]