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Determination of Iodate in Iodized Salt by Reversed-Phase High-Performance Liquid Chromatography with UV Detection

机译:反相高效液相色谱-紫外检测法测定碘盐中的碘酸盐

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摘要

A method for the determination of iodate was developed by reversed-phase high-performance liquid chromatography with UV detection. Iodate was converted to iodine, which was separated from the matrix using a reversed-phase Ultrasphere C18 column (250 × 4.6 mm, 5 μm) with methanol-1 mmol L−1 H3PO4 (20:80, v/v) as mobile phase at 1.00 mL min−1 and UV detection at 224 nm. The calibration graph was linear from 0.05 μg mL−1 to 5.00μg mL−1 for iodine with a correlation coefficient of 0.9994 (n=7). The detection limit was 0.01 μg mL−1. The method was successfully applied to the determination of iodate in iodized salt. The recovery was from 96% to 101% and the relative standard deviation was in the range of 1.5% to 2.9%.
机译:建立了反相高效液相色谱紫外检测法测定碘酸盐的方法。碘化物转化为碘,使用反相的Ultrasphere C18 色谱柱(250×4.6 mm,5μm)和甲醇-1 mmol L-1 H3 与碘分离。以1.00 mL min-1 作为流动相的PO4 (20:80,v / v)和224 nm处的UV检测。碘的校准曲线是线性的,从0.05μgmL-1 到5.00μgmL-1 ,相关系数为0.9994(n = 7)。检出限为0.01μgmL-1 。该方法已成功应用于碘盐中碘酸盐的测定。回收率为96%至101%,相对标准偏差为1.5%至2.9%。

著录项

  • 来源
    《Chromatographia》 |2004年第12期|721-723|共3页
  • 作者单位

    Laboratory of Environmental Toxicology Department of Ecology Biodiversity The University of Hong Kong;

    Laboratory of Environmental Toxicology Department of Ecology Biodiversity The University of Hong KongDepartment of Chemistry Yonsei University;

    Laboratory of Environmental Toxicology Department of Ecology Biodiversity The University of Hong KongThe Swire Institute of Marine Science The University of Hong Kong;

    Department of Chemistry Yonsei University;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Column liquid chromatography; Lodate in iodized salt;

    机译:柱液相色谱;碘酸盐中的碘酸盐;

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