Answer Posted / nisha

water is more polar then acetonitrile so it make bond strongly than acetonitrile with stationary phase so its viscocity is lowered

how to develop the icp ms method? Application of icp ms?

850

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please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1691

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If vendor having more imp than monograph then how to proceed? and how to set spec?

1005

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For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

4135

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which are the sizes of capsules?

1049

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What is the difference between spectro meter and spectro photo meter?

11620

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what is mean by nitrosamine impurities?

1118

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mode of absorption in alimentary canal?

2436

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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.

2360

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how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2655

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in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

890

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what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2736

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A ha tc is actual defination of retention time?

1664

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How we can identify process related and degradation impurity in single method with short period?

870

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Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

1906

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