Answer / skreddy

caffin and benzophenones are thae primary standards and
they are having uv value at 254 nm. ben.phe gives 4 isomers
at 254 nm that will not changed at any conditions.

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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what is titrent,& titrate

2 Answers   Graviti Pharmaceuticals,

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in stress study if your api not soluble in hcl naoh h2o2 then what require to do?

0 Answers  

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What are the differences between GC and HPLC?

1 Answers  

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What is the difference in OVI and Residual solvents?

3 Answers   Discovery Intermediates,

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In lcms analysis some times we get sodium and potassium adducts. if the compound is havine sodium ions how can we confirm wether sodium is from sample or it is a adduct?

2 Answers   Teva Pharmaceuticals,

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How to calibrate glassware against std calibrated glassware?

3 Answers   Cadila, Hetero,

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in what basis wavelength will select for a compound at initial method development trials

4 Answers   Matrix,

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why we use TLC?

8 Answers  

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What is the meaning of 624 in DB-624 Capillary column used in GC?

5 Answers   Aurobindo,

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what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

0 Answers   Neuland,

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Why Urasil and Caffeine use for HPLC wavelength accuracy calibration. which is most suitable, Why? other than these which can be used?

7 Answers   Cipla,

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