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Related Experiment Videos

Rapid urinary iodide test

J Rendl1, D Bier, T Groh

  • 1Clinic of Nuclear Medicine, University of Würzburg, Germany. rendl@nuklearmedizin.uni-wuerzburg.de

Experimental and Clinical Endocrinology & Diabetes : Official Journal, German Society of Endocrinology [And] German Diabetes Association
|December 29, 1998
PubMed
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A new rapid, low-cost urine test accurately measures iodine levels, aiding in the assessment of iodine deficiency and monitoring supplementation programs, especially in developing nations.

Area of Science:

  • Biochemistry
  • Analytical Chemistry
  • Public Health

Background:

  • Iodine deficiency remains a significant global health concern.
  • Effective monitoring of iodine deficiency and supplementation programs requires accessible diagnostic tools.
  • Current methods for urinary iodide determination can be complex and costly.

Purpose of the Study:

  • To develop and validate a rapid, simple, and cost-effective method for assessing urinary iodide concentrations.
  • To provide a tool suitable for epidemiological surveys and monitoring iodine status, particularly in resource-limited settings.

Main Methods:

  • A novel colorimetric rapid test utilizing the iodide-catalyzed oxidation of 3,3',5,5'-tetramethylbenzidine.
  • Urine samples were pre-treated to remove interfering substances using activated charcoal columns.

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  • Comparison of the rapid test results with high-performance liquid chromatography (HPLC) for 370 urine samples.

    • Main Results:

    • The rapid test accurately categorizes urinary iodide concentrations into three ranges (<10, 10-30, and >30 microg/100 mL).
    • Results from the rapid test showed close agreement with the reference HPLC method, with a maximum difference of less than 5% for each category.
    • The test requires no specialized instrumentation and is easy to perform.

    Conclusions:

    • The developed rapid test is a reliable and practical tool for assessing iodine status.
    • This method is highly suitable for large-scale epidemiological surveys and monitoring iodine supplementation programs globally.
    • Its simplicity and cost-effectiveness make it particularly valuable for public health initiatives in developing countries.