Answer Posted / pratibha

Beacause it covers acid,basic and neutral range but still it is not limited to this. the calibration should cover minimum to minimum and maximum to maximum which u r using in analysis

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

1362

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Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2113

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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.

1802

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acceptance criteria for lod & loq by standard deviation of response and slope??

2099

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what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3194

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what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

1807

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why require the ph, buffer during hplc mobile phase?

411

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What is the use of tlc and hplc? And when and where use?

665

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what is mean by covalidation

325

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why require to add enzymes in capsules dissolution only? is it require to tablet also?

273

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what is the origin to prepare standard operating procedure

1795

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Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2218

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how require to set assay concentration for standard and sample?

375

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What is the diference between residual solvents and organic volatile matter

1503

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A ha tc is actual defination of retention time?

1067

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