Answer Posted / md. prince bpharm

Moisture content = Intramolecular water + Extramolecular water

Lose on drying = Extramolecular water + Non-volatile substance

WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2578

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if peak get problamatic then what require to do?

805

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In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1973

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in gas chromatography what is the difference between gas flow rate and average linear velocity ?

2607

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Ph meter can show more than 14 ph reading? Why ph range in between 1 to 14 only?

743

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if rsd failed then what require to do?

842

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we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

1874

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what is diffrence between specificity and selecivity?

788

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what is the origin to prepare standard operating procedure

2338

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Why Ethanol is Used for Standardization of GC Head space?

4231

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what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

10006

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in stress study if your api not soluble in hcl naoh h2o2 then what require to do?

844

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for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

6073

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what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

3699

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Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1696

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