【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。更多还原

【Abstract】 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 Cr6+、Mn2+、Ni2+、Fe3+ interfere determination.Putting away these interfering elements though special processing,we can then nesslerize directly.The results are satisfying.更多还原