山西化工
山西化工
산서화공
SHANXI CHEMICAL INDUSTRY
2012年
6期
37-38,43
,共3页
催化动力学光度法%铜%中性红
催化動力學光度法%銅%中性紅
최화동역학광도법%동%중성홍
catalytic kinetic speetrophotometry%copper%neutral red
研究了在氨-氯化铵介质中Ca^2＋催化双氧水使中性红褪色反应，建立了动力学光度法测定微量Cu^2＋的方法。结果表明，Cu^2＋浓度与吸光度A值呈现良好的线性关系，线性相关方程为Y=1．5795x-0．0016，r=0．9990，回收率为98．0％～102．0％。该方法可用于奶粉中痕量铜的测定，结果满意。
研究瞭在氨-氯化銨介質中Ca^2＋催化雙氧水使中性紅褪色反應，建立瞭動力學光度法測定微量Cu^2＋的方法。結果錶明，Cu^2＋濃度與吸光度A值呈現良好的線性關繫，線性相關方程為Y=1．5795x-0．0016，r=0．9990，迴收率為98．0％～102．0％。該方法可用于奶粉中痕量銅的測定，結果滿意。
연구료재안-록화안개질중Ca^2＋최화쌍양수사중성홍퇴색반응，건립료동역학광도법측정미량Cu^2＋적방법。결과표명，Cu^2＋농도여흡광도A치정현량호적선성관계，선성상관방정위Y=1．5795x-0．0016，r=0．9990，회수솔위98．0％～102．0％。해방법가용우내분중흔량동적측정，결과만의。
The catalytic reaction of hydrogen peroxide bleaching to neutral red by Cu^2+ in chloride-ammonia medium was studied, a kinetic spectrophotometric method of determination of Cu^2+ was established. There was a good linear relationship between Cu^2+ concentration and absorbanee value, the line related equation was y = 1. 579 5x - 0.001 6, the coeglcient of correlationr = 0.999 0, the recovery was 98.0% - 102.0%. The method can be used for the determination of trace copper in milk powder with satisfactory results
