期刊论文详细信息
The Journal of Pure and Applied Chemistry Research
Study of Ascorbic Acid as Iron(III) Reducing Agent for Spectrophotometric Iron Speciation
Hermin Sulistyarti2  Atikah Atikah2  Antesar Elmagirbi1 
[1] Chemistry Department, Faculty of Arts and Science, Al-Mergeb University, Tarhuna-Libya$$;Chemistry Department, Faculty of Sciences, Brawijaya University, Malang, Indonesia$$
关键词: Iron;    speciation;    ascorbic acid;    o-phenanthroline;    spectrophotometry;   
DOI  :  10.21776/ub.jpacr.2012.001.01.101
来源: University of Brawijaya
PDF
【 摘 要 】

The study of ascorbic acid as a reducing agent for iron(III) has been investigated in order to obtain an alternative carcinogenic reducing agent, hydroxylamine, used in spectrophotometric standard method based on the formation of a red-orange complex of Fe(II)- o -phenanthroline. The study was optimised with regards to ascorbic acid concentration as well as pH solution. The results showed that ascorbic acid showed maximum capacity as reducing agent of iron(III) under concentration of 4.46.10 -4 M and pH solution of 1-4.Under these conditions, ascorbic acid reduced iron(III) proportionally and performed similarly to that of hydroxylamine.  The method gave result to linear calibration over the range of 0.2-2 mg/L withhigh accuracy of 97 % and relative standard deviation of less than 2 %. This method was successfully applied to assay iron speciation in water samples.

【 授权许可】

Unknown   

【 预 览 】
附件列表
Files Size Format View
RO201912040518527ZK.pdf 183KB PDF download
  文献评价指标  
  下载次数:9次 浏览次数:21次