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why water content test performed
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Are the stability results out-of-trend without an obvious root cause? Maybe the decrease in assay can be explained by an increase in water content. Non-solid product or raw material can be released without testing the water content. The amount of water is needed to calculate the purity ‘as is’ of a product and to evaluate compliance with the specification set
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In Number of Theoretical Plates (N) = 16 (tr/w)2. where tr: retention time, and W: peak width. My Question is here in formula what is 16.Can u explain briefly? ---Veerabhadrarao.M
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Organic Chemistry 
