why there is a need of optical activity & specific optical activity measurement by polarimeter

6 Answers   Cadila,

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How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

0 Answers  

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Plz explain the formula in uv calibration =Absorbance of the sample ( x ) x 10 x 1000/Weight of potassium dichromate taken in mg

1 Answers  

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A ha tc is actual defination of retention time?

0 Answers  

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What is basic difference between method validation,process validation

1 Answers   Atul,

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why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

0 Answers  

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What is the difference between Paddle and Basket Why we are using Basket or paddle in dissolution.

7 Answers   Apotex, Cipla, GSK, Intas, Zydus Cadila,

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what is principle of XRD?

3 Answers   Cipla,

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In IR spectra, generally a molecule vibrates without apply emr or ir light?

0 Answers  

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In case of dissolution test, if there is variation within 6 individual units however the batch is complying as per S1 criteria, is it necessary to do investigation for the same? What should be the criteria for such variation?

2 Answers  

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what r the reasons to get peak telling?

6 Answers   Cipla,

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What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

0 Answers  

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