A very sensitive flow-injection spectrophotometric determination method for iron (II) and total iron using 2′, 3, 4′, 5, 7-pentahydroxyflavone

被引：0
作者：
Adem Asan
Rukiye Aydin
Deniz Karsli Semiz
Vildan Erci
Ibrahim Isildak
机构：
[1] Ondokuz Mayis University,Department of Chemistry, Faculty of Science
[2] Ondokuz Mayis University,Department of Environmental Engineering, Faculty of Engineering
[3] Yildiz Technical University,Bioengineering Department, Faculty of Chemical and Metallurgical Engineering
来源：
Environmental Monitoring and Assessment | 2013年 / 185卷
关键词：
Flow-injection analysis; Iron; Spectrophotometry; 2′, 3, 4′, 5, 7-Pentahydroxyflavone;
D O I：
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中图分类号：
学科分类号：
摘要：
In this study, an ultra-sensitive and highly selective, rapid flow-injection spectrophotometric method for the determination of iron (II) and total iron has been proposed. The method was based on the reaction between iron (II) and 2′, 3, 4′, 5, 7-pentahydroxyflavone in slightly acidic solution with a strong absorption at 415 nm. The carrier solution used was 1 × 10−5 M 2′, 3, 4′, 5, 7-pentahydroxyflavone in 0.1 M HAc/Ac− buffer solution at pH 4.5. Parameters that affect simultaneously the determination of iron (II) and interfering ions were tested. The relative standard deviation for the determination of 50 μg L−1 iron (II) was 0.85 % (n = 10), and the limit of detection (blank signal plus three times the standard deviation of the blank) was 3 μg L−1, both based on injection volumes of 20 μL. The method has been successfully applied to the determination of iron (II) and total iron in water samples and ore samples. The method was verified by analysing a certified reference material Zn/Al/Cu 43XZ3F.
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页码：2115 / 2121
页数：6
相关论文
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