还原溶出计时电位法测定水中痕量锰  

STRIPPING CHRONOPOTENTIOMETRIC METHOD FOR THE DETERMINATION OF TRACES OF MANGANESE IN WATER

作　　者：金米聪[1] 于笑宇[1] 颜金良[1] 刘佑铭[1] 

机构地区：[1]宁波市卫生防疫站,宁波315010

出　　处：《理化检验（化学分册）》2000年第4期153-154,共2页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：提出了在 p H 8.8的 H3BO3- Na2 B4 O7介质中 ,用还原溶出计时电位法测定水中痕量锰的方法。锰的检出限为 0 .5ng· ml-1,相对标准偏差为 4.5% ,线性范围为 0 .5～ 2 5ng· ml-1。采用标准曲线法对五份不同浓度的水样进行了测定 。A new method of chronopotentiometric stripping analysis for determination Mn in a supporting electrolyte solution containing H 3BO 3 Na 2B 4O 7 was reported. The linear relationship between the stripping peak height and Mn ion concentration is in the range of 0.5~25ng·ml -1 . The detection limit is 0.5ng·ml -1 .

关 键 词：溶出计时电位法 水 锰 痕量分析 

分 类 号：O661.1[理学—分析化学] O614.711[理学—化学]