磺基水杨酸显色分光光度法测定螯合剂螯合铁能力的研究  

Determination of Fe(Ⅲ) ion chelating power by spectrophotometry

作　　者：魏艳[1] 沈淑英[1] 赵梅[1] 吴德清[1] 

机构地区：[1]浙江传化股份有限公司,浙江杭州311215

出　　处：《清洗世界》2009年第3期23-25,37,共4页Cleaning World

摘　　要：建立了测定螯合剂螯合铁能力的分光光度法。采用试剂空白作参比，在505nm处测体系吸光度，考察了显色剂用量、显色稳定时间和pH对测定结果的影响。工作曲线线性范围为0～0．4mmoL／L，加标回收率在98．8％～100％之间，结果表明该方法操作简便、可靠、重现性好，适于螯合剂螯合铁能力的测定。Fe （Ⅲ） ion chelating power was determined by spectrophotometry. The absorbance of the system was recorded at 505 nm against a second system with a blank solution of reagent. The influence of developer dosage, stable time and pH was studied. The absorbency was linear to the concentration of Fe （ Ⅲ ） in the range of 5.0 - 100 μg/mL. Good recovery results were also obtained with the range of 98.8% - 100%. The results indicated that the method was suitable for Fe （Ⅲ ） ion chelating power with good convenience, accuracy and recovery.

关 键 词：螯合剂 分光光度法 磺基水杨酸 铁离子 

分 类 号：TS529[轻工技术与工程—皮革化学与工程]