Answer Posted / sarma dvv

Stability means how long the drug was stable with out
losing original character.

drug compound will decompose at different environmental
conditions such as temperature,humidity & light....

From stability we can know thefollowing things
1.Re-test period of the drug.
2.Packing conditions of the drug.
3.Storage conditions of the drug(Temp and humidity)

Typical stability storage conditions of the drug.
1)accelerated Studies 40°c & 75 Relative Humidity
2)Intermediate studies 30°c & 65 Relative Humidity
3) Real time studies 25°c & 60 Relative Humidity.

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2632

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iam usig ph buffers merk. manually how to prepare ?

2279

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How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

3245

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Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1471

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please explain about aluminium hydroxide assay

1132

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How to set analyticl specification for combination products?

748

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What is mean by PDR?

949

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What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

7549

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Loss of linearity in tkn analysis, possible reasons?

1322

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Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2865

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How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

2390

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How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

735

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in which situation require to change rs specification?

750

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What is delay volume?

1398

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how require to fix the linearity and accuracy cincentration range?

1672

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