Answer Posted / dhanaji (thinq pharma)

DLATGS

how to calculate elemental impurities?

1032

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can i use hplc detector to uplc and why?

2290

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what you do when compound having dwel wavelength?

750

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how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.

2300

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WHY pKa value is more important than pH value of the mobile phase in HPLC?

1768

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why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2298

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How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

4268

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How doing qbd practically?

978

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If change in specification which parameter require to do for validation? if change in chromtographic condition then which parameter? if api change then which parameter? if change composition then which parameter? if old method not work out then whicj parameter? if additional one impurity added then which parameter of validation require to do on above each conditions? elaborate separately

856

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How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

3355

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for which product require to do content uniformity? what is limit of cu?

816

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what is the origin to prepare standard operating procedure

2329

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how you confirm the assay method?

772

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

787

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in hplc chromatogram started from left to right and in uv spectrum started from left to right

951

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