Answer Posted / m balaram naidu

POLYSTARENE FILM MADE BY POLYMER OF STYRENE. IT IS HIGHLY
DURABILITY AT ANY TEMPARECTURE.
POLYSTARENE FILM GIVES SHARP PEAKS WHICH COVER WHOLE IR
RESION.

How do we fix the sample concentaryion in hplc method development. What is the basis?

1195

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What is Band broading effect explain

1872

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what is the extinction coefficient for Indomethacin or at 319nm wave length.

4059

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What is viod volume and peak purity in HPLC?

2874

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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

1619

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What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

8855

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in api coa contains only process impurities and in product coa contains degradation impurities?

694

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what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2665

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How do we fix the sample concentaryion in hplc method development?

1130

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WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

1181

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what type of question will ask in the interview of lab chemist.

3306

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why multimedia dissolution require to do?

808

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from where i get mortar pastle for glass bottle crush? it's required for testing of it?

2258

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A ha tc is actual defination of retention time?

1612

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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

1587

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