Answer Posted / dinesh solanki

Custom calculation is calculation done by waters softwere instead of validate excel.By custom you calculate the results online, assay,RS, single point and profiling dissolution.For this calculation we make some field and we add std, SPL wt and other required details. Initially it difficult but then it was very easy, time saving and error less calc.

In performance Check of GC Why Hexadecane Peak is Considered 

2993

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how you start RS method development when for new product?

671

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in each media we require to use SLS? how to proceed?

732

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which situation gc hs and gc als require to use?

733

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

767

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What is the formula for relative diffrence for standard solution in solution stability in validation?

747

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what is biorelivent dissolution media?

754

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How to choose the which salt is suitable for mobilephase

3184

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why salisylic acid not using now days for disdolution calibration?

722

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What is the Formula for coreletion coefficient in plhplc calibration

1779

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What is related substance by HPLC impurity limits as per USP?

1047

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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

6006

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What is similarity factor and its use in api strength?

1253

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

5150

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why we are using benzene, anyline in acetic anhdride assay titration method?

2078

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