Answer Posted / a.supriya

Holmium perchlorate will give sharp peak in uv and visible range and very stable compound

Qc interview questions

1694

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Hi sir if any product monograph not given known impurities (may be 5 impurities) specifications then how we require to proceed for inhouse formulation?

651

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In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

2175

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How to do regeneration of Metacarb Pb plus column?

2511

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what is mean by dissolution biowaiver study?

851

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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?

775

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Please give idea about method development for cleaning method and how maco level establish

694

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

2584

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How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3154

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Loss of linearity in tkn analysis, possible reasons?

1255

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If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

757

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for inorganic molecules require to do RS, Assay and disso?

668

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If combination product how require to identify which imp is of which api?

789

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How you develop a method in HPLC?

2561

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My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1546

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