Answer / raja.s

Usp limit

Answer / nagesh

As per IP 28 to 32
As per USP 29 to 32

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

4 Answers   Micro Labs,

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What is reaction takes place when water content analysis is done

2 Answers  

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I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

0 Answers  

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In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?

8 Answers   Aurobindo, Cipla, FDC,

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A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?

2 Answers  

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Difference between standard operating procedure and standard test procedures in pharmaceutical industry

2 Answers  

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In acid base titration, after complet consumption of HCl by NaOH, addition of next drop of NaOH will give pink colour with phenolpthalein indicator. Why this pink colour appear? Why not blue, black, green or anything elese?

3 Answers  

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what is the limit for KF Factor ,we take factor using water we will found factor between 6 to 7 ,while on KF Reagent bottle mentioned 5 mg/ml water content.if we not use dried methanol it is effect on factor.

1 Answers   Atul,

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what is %labelled amount in content uniformity of dosage unit and its calculation?

0 Answers   Zydus Cadila,

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How to prepare 10% HCl from 36.5% HCl solution.

5 Answers   Dr Reddys,

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why we use prednisone tablet in chemical callibration of dissolution apparatus?

6 Answers   Cipla, Mylan, Umedica Laboratories,

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which pharmacopeoia mentions that caffiene is used as a standard for HPLC calibration? which other standardscan be used for the same?

1 Answers   Hetero, Mylan,

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