what is internal standard define

2 Answers   Apex, Coromandel International Limited, Hikma Pharmaceuticals, IPCA,

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Why will a solution of aspirin without acid or basic hydrolysis give yellow colour with a solution of Ferric chloride?

1 Answers  

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Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

0 Answers  

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Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

0 Answers  

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How can you prepare 0.05M Ammonium acetate volumetric solution?

2 Answers  

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in which situation ion pair agent require to use?

0 Answers  

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How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?

0 Answers   NCL,

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what does 'n' stands for in spectroscopy?give the formula.

0 Answers   Laurus,

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what is polarity and how to calculate

2 Answers   Reddy Labs,

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How to start the dissolution development for unknown tab?

0 Answers   IPCA,

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which light is used in FT-IR spectroscopy

6 Answers   Hetero,

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What should be the precision for HPLC during technology transfer?

3 Answers  

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