Answer / tanhaji b.

pH means hydrogen ion concentration.
Which help for constant Retention time and early peak elution.which is Selected on the basis of Pka and Pkb value .

How precise should be the linearity in HPLC method validation?

3 Answers   Glenmark,

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What is difference between Primary and secodary reference standard?

2 Answers  

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what is the difference between gc& hplc. why we r not calculating purity by gc for final products

5 Answers   Biocon, Cipla,

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How will you select mobile phase in HPLC Method Development

4 Answers  

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why we are using buffer solutionas as a mobile phase in hplc.

2 Answers  

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When i inject amines and acid on HPLC then which peak will elut first?

4 Answers   Sun Pharma,

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why using buffers in hplc inteed of water

5 Answers  

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how to start the method development of Dissolution and related substances.

1 Answers   Apex,

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verification of wave number why you are use in IR calibration

2 Answers  

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what is the definition of Precision.

4 Answers   Cipla,

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What is difference btw UV detector & RID detector

4 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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