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In pharmacopeal solibility parameter of a material, is et
essential to test all paramete? If 70-75% parameter passes
can we assess that the material is satisfactory or not?
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why ph electrode is storing in KCL solution?Why the pH max is 14.0?
what is least count of a balance? How we find out this? Any formula for least count of Analytical balance?
13 Answers Acme Formulation, Analytical Solutions, Dr Reddys, Reddy Labs,
if you get peak in blank then what require to do?
When ever we perform system suitability,inject the corresponding standard 6 times why? is thair any reson
Is it compulsory to prepare KBr disc with sample in identification test by FTIR?
in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?
why we are using sodium,potassium phosphates for mobile phase preparation?
A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
how calculate column dead volume in hplc ?
what is peak purity ??
why peak purity not considered in GC?
4 Answers DRL, Reddy Labs, Vimta Labs,
Organic Chemistry 
