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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why water factor is near about 5.0 in kf titration?

3 Answers   Claris Lifesciences, Indchemie Health Specialities,

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Which detector is used in uv-vis spectrophotometer?

1 Answers   Glenmark,

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what is the diffrence between absorbance and absorption in the beer,s lamber formula ?

2 Answers  

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Why potassium dichromate is used in calibration of uv?

0 Answers  

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What is difference between the working standard and reference standard?

1 Answers  

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what is custom fields in waters system?

1 Answers   Akorn India, Aurobindo,

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How will you separate Colorless compound Using Column Chromatography?

4 Answers   Delhi University, VPHS,

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priciple of gc & hplc? (properly describe)

2 Answers   Cadila, Cipla, Reddy Labs,

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How to use RF and rrf in Rs calculation( either multiply or divide)?

4 Answers   Micro Labs,

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what is the difference betwen the analytical column & peparative column?

4 Answers  

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what is the use of performing tapped density in pharmaceutical industry

1 Answers  

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