In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?

1 Answers   Gland Pharma,

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Which parameter require to do for analytical method equivalency?

0 Answers  

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WHY pKa value is more important than pH value of the mobile phase in HPLC?

0 Answers  

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Why sulpuric acid only used to ROI but not used nitric acid and some other acids?

7 Answers   Cadila, Laurus, Ranbaxy,

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What is the difference between the optics of UV and PDA Detectors ?

3 Answers   Emmennar, Neuland,

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Any molecule is filing for ANDA purpose, what are the dissolution requirements / specifications needed ?

1 Answers   IPCA,

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how many types oos and oot

1 Answers  

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how do start hplc method development? how much sample required for developing the method development?

3 Answers   BMS, Cipla, Indoco Remedies, Sun Pharma,

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Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

0 Answers   Aurobindo, Reddy Labs,

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Can we do the MC analysis of a sample which is not completely soluble in the medium choosed.

2 Answers  

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What is polymorphism?which type of compounds exhibits polymorphism?

2 Answers   Torrent Pharma,

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what is difference between zero air gas and o2 gas

1 Answers   IPCA, Vasudha Pharma,

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