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1 Ιουν 2017 · Iodine in salt is determined quantitatively by the titration method, colorimetrically by the WYD iodine checker or by a technologically advanced potentiometric method.
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Iodine in salt is determined quantitatively by the titration...
- Ronald P. Phelps
Ronald P. Phelps's 57 research works with 1,118 citations...
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measuring iodine content in household salt have been an important monitoring tool for assessing the performance of salt iodization programmes. While iodine in the diet was previously assumed to come predominantly from household iodized salt, recent evidence suggests that an increasing amount of iodized salt is consumed through processed
The semi-quantitative estimation of the salt iodine by using a rapid test kit (RTK) is based on the reaction between starch and iodine to form starch-iodine complex. This test solution contains an acidic buffer and a reducing agent, which convert potassium iodate (KIO 3) to elemental iodine (I 2).
20 Μαΐ 2016 · The median and interquartile range iodine concentration in salt was 2.9 mg/kg (IQR: 2.4-3.7). The results show that only 25 % of households use iodized salt. The recommended iodine concentration in salt of 15–40 mg/kg was met only in 4.5 % of salt samples. The bulk salt is used by 8 % of households.
4 Δεκ 1996 · Based on this information, this document summarizes current WHO, UNICEF and ICCIDD recommendations concerning iodine levels in salt, risk of associated iodine-induced hyperthyroidism, and requirements for monitoring both iodine status and adequacy of iodine levels in salt.
Determine the performance of a laboratory spectrophotometric method and three single-wavelength spectrophotometric devices for quantifying iodine in salt against the standard iodometric titration method. Compare the analytical accuracy and precision, simplicity of use, and cost.
The iodine content of iodated salt samples is measured using an iodometric titration, as described by DeMaeyer, Lowenstein, and Thilly, (1979). The reaction mechanism can be considered in two steps (See Box 1): Reaction 1: Liberation of free Iodine from salt. Addition of H2SO4 liberates free iodine from the iodate in the salt sample.
