we can use expired sample for validation and analyst qualification?
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difference between pH & pOH ?
How to make up 100ml of a solution cintaining compound A at 95µg/ml and compound B at30µg/ml for an HPLC reference standard.
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Why we inject a standard 6 times for Related substances by HPLC and 5 times for Assay?
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Why red HgI2 added during starch preparation?
Difference between uv detector nd RI DETECTOR? wt s the difference between OVI Solvents nd residual solvents incase of GAS CHROMATOGRAPHY? nd wt s its detection limit?