铬天青S分光光度法测定食物中铝时高氯酸根的干扰及其消除  

The Interference and Elimination of ClO_4^- in Determination of Aluminum by Chromium Azure S Spectrophotometry

作　　者：刘桂英[1] 张加玲[1] 白彩明[1] 

机构地区：[1]山西医科大学公共卫生学院卫生化学教研室,山西太原030001

出　　处：《广东微量元素科学》2007年第10期43-45,共3页Trace Elements Science

基　　金：山西省自然科学基金资助(No.20041108)

摘　　要：研究了铬天青S分光光度法测定铝时,样品消化液中残留高氯酸根的干扰及其消除方法,用阴离子交换树脂将样品消化液中残留的高氯酸根交换去除。结果表明,样品经过阴离子交换树脂柱后,高氯酸根基本去除,不再产生混浊,且铝的回收率达90%。该法简便可行,提高了铝测定的准确度。To study the interference and elimination method of residual ClO^-4 in determination of aluminum by chromium azure S spectrophotometry. Anion-exchange resins chromatography was used to remove ClO^-4 in digested solution of the sample. The results showed that ClO^-4 was eliminated when the solution passed through the column and no turbidity was found. The recovery rate of aluminum was 90%. It conclded the method was simple and effective. The accuracy of the determination was improved.

关 键 词：铝 高氯酸根 阴离子交换树脂 分光光度法 

分 类 号：R115[医药卫生—公共卫生与预防医学] O657.32[理学—分析化学]