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Answer Posted / sanjeev
Why we are using six jar for dissolution test
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What is the diference between residual solvents and organic volatile matter
please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
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