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2 Μαΐ 2024 · The iodine test is a chemical test used to distinguish mono- or disaccharides from certain polysaccharides like amylose, dextrin, and glycogen. This test has a variation termed starch-iodine test that is performed to indicate the presence of glucose made by plants in the leaves.
Iodine concentrations in drinking waters and soils are increased by man’s activities. Iodine is used in herbicides, fungicides, dairy sterilants, detergents, table salt, pharmaceuticals and bread-making. It is also enhanced in the atmosphere from fossil-fuel combustion, car exhausts and sewage.
Exposure to iodine may occur through drinking-water, pharmaceuticals, and food. At a concentration of 4 µg/litre in drinking-water, adult human daily intake will be 8 µg of iodine, on the assumption that 2 litres of drinking-water are consumed per day. KINETICS AND METABOLISM IN LABORATORY ANIMALS AND HUMANS
10 Απρ 2021 · Principle Of Iodine Test. This test depends upon the property of adsorption possessed by the large polysaccharide molecules. Starch contains alpha-amylose, helical saccharide polymer and amylopectin. Triiodide anion instantly produces an intense blue-black color upon contact with starch.
Field studies on small public water systems have shown that low levels of 0.5 to 1 mg/liter of free iodine can be maintained in distribution systems and that the magnitude of residual is sufficient to produce safe drinking water with no adverse effects on human health.
The average concentrations of iodine in seawater, rainwater, and rivers and lakes are 45–60 g/L, 0.5–5.0 g/L and 0.5–20 g/L, respectively (Whitehead, 1984). Human exposures to iodine through drinking-water are typically too low for significant uptake of iodine.
21 Αυγ 2024 · Abstract. Excessive intake of iodine will do harm to human health. In recent years, high iodine groundwater has become a global concern after high arsenic and high fluorine groundwater.
