What is meaning of LOD and Water content ?
Answer Posted / mallikarjun.kota
LOD: The Loss on Drying Test is designed to measure the amount of water and volatile
matters in a sample when the sample is dried under specified conditions.
water content :The Water Determination Test (Karl Fischer Method) is designed to determine
water content in substances, utilizing the quantitative reaction of water with iodine
and sulfur dioxide in the presence of a lower alcohol such as methanol and an organic
base such as pyridine, as shown in the following formulae:
H2O+I2+SO2 + 3 C5H5N → 2(C5H5N+H)I- + C5H5N・SO3
C5H5N・SO3 + CH3OH → (C5H5N+H)O-SO2・OCH3.
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