Answer Posted / ravinder

we used potiassium chromate for calibration of spectrophotometer.

Which parameter require to do for analytical method equivalency?

786

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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

6073

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What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

830

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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?

3361

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In Dissolution Test why limit is define Q+5% what is the role of +5%.

3108

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why digestion require in icpms?

776

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about method developement in hplc

1724

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what is turbidimetric titration?Give 2 examples.

2672

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please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1636

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In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

3032

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how to develop the icp ms method? Application of icp ms?

812

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We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1909

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Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

2187

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I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

3540

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WHY given much noise PDA dector then VWD Dector

2101

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