Answer Posted / nanda

If assay failed purity also fail.

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

1546

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In which situation we require to analytical method validation of excipient?

733

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What is the main difference between ODS1 and ODS2 Hplc column.

5122

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In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.

3066

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2678

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2260

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889

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846

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735

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887

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EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2575

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What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1555

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if you have given a blank water how you analyse by general analytical techniques?

1975

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why multimedia dissolution require to do?

727

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in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

775

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