碘量法与光度法测定氨基胍重碳酸盐含量的比较  

COMPARATIVE STUDY OF THE DETERMINATION OF AMINOGUANIDINE BICARBONATE BY IODOMETRY AND PHOTOMETRY

作　　者：黄荣清[1] 李艳玲[1] 骆传环[1] 张宁[1] 杨文才[1] 梁晓东[1] 裴凤仙[1] 秦芳芳[1] 

机构地区：[1]军事医学科学院放射与辐射医学研究所,北京100850

出　　处：《理化检验（化学分册）》2006年第3期192-193,196,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：国家自然科学基金(No.3021608)北京市自然科学基金(No.7042048)资助项目

摘　　要：经比较试验表明碘量法及光度法均可用于氨基胍重碳酸盐的测定,但碘量法测定所需时间比光度法短,并操作比较简便。碘量法的精密度优于光度法。用两方法对同一试样测定了9 次,所得结果的相对标准偏差依次为2．8％和0．54％。A comparative study demonstrated that both the iodometry and photometry could be used for the determination of aminoguanidine bicarbonate. The iodometry was easy to operate and spent less analysis time and had a better precision, compared to the photometry. RSDs of the analytical results, which were separately obtained by the analysis of the same sample （n = 9） using iodometry and photometry, were 2. 8% and 0. 54% respectively.

关 键 词：碘量法 光度法 氨基胍重碳酸盐 

分 类 号：O657.31[理学—分析化学]