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Related Experiment Videos

Application of quantitative salt iodine analysis compared with the standard method.

S Chongchirasiri1, S Pattanachak, N Putrasreni

  • 1Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
|September 15, 2001
PubMed
Summary

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A new starch-potassium iodide (KI) method accurately quantifies iodine in salt, offering a simpler alternative to standard iodometric titration for ensuring adequate iodine intake and preventing deficiency disorders.

Area of Science:

  • Analytical Chemistry
  • Food Science
  • Public Health Nutrition

Background:

  • Iodine deficiency disorders (IDDs) remain a significant global public health concern.
  • Salt iodization is a primary strategy for IDD prevention.
  • Accurate and accessible methods for monitoring salt iodine content are crucial.

Purpose of the Study:

  • To develop and validate a novel starch-potassium iodide (KI) method for quantitative determination of iodine in iodized salt.
  • To compare the performance of the new method against the standard iodometric titration method.
  • To assess the feasibility of the starch-KI method for field and laboratory use.

Main Methods:

  • Laboratory analysis of 50 iodized salt samples from various sources.
  • Determination of iodine content using the standard iodometric titration method (PAMM/MI/ICCIDD).

Related Experiment Videos

  • Development and validation of a novel starch-potassium iodide (KI) quantitative method.

    • Main Results:

    • The developed starch-KI method demonstrated high precision, accuracy, sensitivity, and specificity.
    • The method could detect iodine concentrations as low as 10 ppm with a coefficient of variation below 10%.
    • Results from the starch-KI method showed excellent correlation (r = 0.99) with the standard iodometric titration method.

    Conclusions:

    • The starch-KI method is a reliable, precise, and accurate alternative for quantifying iodine in salt.
    • Its simplicity, ease of use, and applicability for qualitative spot tests make it suitable for field deployment.
    • This method can support effective salt iodization programs and contribute to the prevention of iodine deficiency disorders.