Answer Posted / nandkishor

The method is based on stoichiometric reaction between water
and a solution of sulfur dioxide and iodine in pyridine(or
any other base)and methanol the end point is detected
electrometrically

which situation gc hs and gc als require to use?

793

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calibrtion procedue of LC-MS

2712

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How to calculate coreletion coefficient

1715

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How to fix the sample conc. in Related substances test by HPLC?

1099

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analytical method validation require to with respect to release specification or shelf life specification?

796

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if rsd failed then what require to do?

841

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If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?

776

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Loss of linearity in tkn analysis, possible reasons?

1322

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give clarity of linearity and range in method validation

2420

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WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

2134

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Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2609

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what is mean by peak intigrity?

954

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using gradient pressure in gas chromatography are not ?using gradient pressure why

3391

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can i use hplc detector to uplc and why?

2293

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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

1599

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