In GC and HPLC ,how we can decide which of following method will be suitable or use for quantitation of chromatogram at the time of method development. 1.Area Normalisation 2.External standard method 3.Internal standard method

1 Answers   Atul,

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How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

0 Answers   Graviti Pharmaceuticals, Vimta Labs,

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What are modes of quantification in related substances

0 Answers   Hospira,

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why we get negative values in uv when i placed sample which has some concetration but not in standard

1 Answers   Nirma,

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why we use only six bowls for dissolution of a drug

1 Answers   Cipla, Natco, TelePerformance,

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why salicylic acid not use for dissolution.

2 Answers   Cipla, Indo Baijin Chemicals,

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why does the result variation in hplc and gc with same sample ?

4 Answers   Matrix,

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Why the ph limit (1_14) Is used?

3 Answers   Cipla,

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we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?

2 Answers  

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what is primary solution and secondary solution

2 Answers  

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WHAT IS PVT TEST IN DISSOLUTION TEST , WHAT IS PVT SIGNIFICANCE AND HOW IT IS PERFORMED ?

1 Answers  

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What is the use of tailing factor ?

2 Answers  

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