What is column in chromatography?

0 Answers   Chembond Chemicals,

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Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?

1 Answers  

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stability study is going on up to 3years for famotidine-USP but the pharmacopeia is revised and tlc test is replaced with hplc test. At the 4th year frequency the product is failed in hplc test .how can i assain the expiry or retest date and can i stop or continue the programme?

2 Answers   Nakoda Chemicals,

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what is a differance between assay by HPLC and assay by titration?

5 Answers  

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what is basc principle of the HPLC,IR,UV AND GC? what is difference between diffusion spectra and transmision spectra in IR?

1 Answers   Cadila, Dr Reddys, GICC, Mylan, Sygene, Torrent Pharma, Zydus Cadila,

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why water factor is near about 5.0 in kf titration?

3 Answers   Claris Lifesciences, Indchemie Health Specialities,

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what are the guidelines for analytical method validations?

0 Answers  

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What are usp limits for total impurities,unknown impurity

1 Answers   Dr Reddys,

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what is mass spectra ? why it is necessary ?

1 Answers  

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What is the difference between uplc and hplc

4 Answers   AAU Assam Agricultural University, Hetero,

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What is the difference between the working standard and reference standard?

1 Answers  

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What is difference between" LOD" AND "VACCUME LOD"

2 Answers  

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