Answer Posted / chemistk

FTIR is the process by which a sample is placed into a KBr
pellet or mineral oil mull and subjected to infrared
radation (waves of light from the IR part of the light
spectrum). The IR light is then partially
absorbed/transmitted by the bonding of the molecules within
the sample by their streching & bending. This absorption
is then represented graphically with a spectrum from 450 -
4000nm. This is a fingerprint of the substance (best
results are obtained with pure samples).

effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

848

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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

1575

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Tell me something about Vitamin A test method by HPLC

2628

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what are the standard methods for HPLC?

2734

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Why potassium dichromate is used in calibration of uv?

1923

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In which situation we require to analytical method validation of excipient?

733

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

694

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Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

2649

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How to calculate coreletion coefficient

1635

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What is rs test why we are performing rs test?

1803

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We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

1673

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How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2541

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Colorimtry

1618

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what is the structure of DOWEX-50

5452

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What is control room temperature and which guide line says?

1580

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