What is the reason of RT change in new column v/s old column in HPLC

3 Answers   Apex,

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what is the basis of separation in chromatography?

1 Answers   Anthem,

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How to calibrate glassware against std calibrated glassware?

3 Answers   Cadila, Hetero,

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importance of internal standard and in what conditions it is used?

1 Answers  

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How to fix the sample conc. in Related substances test by HPLC?

0 Answers  

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what is specificity?

4 Answers   Amneal Pharmaceuticals, Aurobindo,

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How to determine water content of thioanisole? which interfere by KF titration?

1 Answers  

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what type of question will ask in the interview of lab chemist.

0 Answers   Godavari Biorefineries, Monginis,

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If vendor having more imp than monograph then how to proceed? and how to set spec?

0 Answers  

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Why using 0.5% acetone in methanol mobile phase for HPLC Gradient performance check.

2 Answers   DRL,

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difference between selectivity and specificity

2 Answers   Troikaa Pharmaceuticals,

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if you have given a blank water how you analyse by general analytical techniques?

0 Answers  

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