please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development
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why ur using toulene in hexane in u.v calibration?
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What is similarity factor?
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why KF factor is between 4.5 to 7.5 mg/ml ? why ? why sometime pyridine is used in analysis like in raw material solvent like acetone etc?
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in which situation require to use paddle and basket?
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USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
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why there is a need of optical activity & specific optical activity measurement by polarimeter