Sensitive Flow-Injection Amperometric Detection of Iodide Using Mn3+ and As3+
作者： Snezana D. NIKOLIC , Jelena J. MUTIC , Aleksandar D. LOLIC , Dragan D. MANOJLOVIC
关键词: Platinum 、 Detection limit 、 Electrode 、 Iodide 、 Calibration curve 、 Content determination 、 Sulfuric acid 、 Amperometry 、 Chromatography 、 Chemistry
摘要: A rapid, selective, and sensitive kinetic flow-injection method for iodide content determination with amperometric detection on a platinum electrode was developed. The is based the catalytic effect of Mn3+ reaction As3+ in presence sulfuric acid. calibration curve linear concentration range from 5.0 × 10-7 to 1.0 10-4 mol/L iodide. limit (LOD) found be 10-9 relative standard deviations (RSD) were 1.68% 3.03% 10-3 10-6 solution (n = 6), respectively. has been successfully applied waters, table salts, fodder, organic substances human blood sera. results compared those obtained by AOAC (Association Official Analytical Chemists) method, as well spectrophotometric procedure
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