Why we use buffers Acetate for pH 4.5 & phosphate for 6.8 and not vice-versa?

1 Answers   Zydus Cadila,

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please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

0 Answers   Pfizer,

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what are peak purity,peak purity index,peak thresold

2 Answers  

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What is calibration procedure of gredient HPLC pump

4 Answers  

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What is cut off value of solvent used in hplc

1 Answers   Pfizer,

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tell me about aliphatic acid estimation by hplc which columns can we use

1 Answers   Dr Reddys,

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how you confirm the assay method?

0 Answers  

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i set electrode to 7 buffer than i used it to check 4 buffer and 10 buffer if the results are not as expected than is it better to set the buffer again to 4 buffer or is there any other method available please let me know ...

2 Answers   Glochem,

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How to now that my acid is contact with base or base is contact with acid in drugs, is there any techniq to identify the formation of salt(drug)

3 Answers   Reddy Labs,

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how require to select dissolution media? what is discrimination?

0 Answers  

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what is difference between drug products and drug substance?

5 Answers   DRL,

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IN DISSOLUTION WE ARE USING A LETTER 'Q' WHAT IS MENT BY Q

5 Answers   Reddy Labs, Torrent Pharma,

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