In IR spectra, generally a molecule vibrates without apply emr or ir light?

0 Answers  

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what is mean by 21 CFR PART? In that what is 21 ?

1 Answers  

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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

0 Answers  

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how we do assay of urea, ammonium sulpate, ammonium nitro pospate etc

1 Answers   Alembic,

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How we fix the validity period of a Normal solution and re-standardization due date

3 Answers  

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what is the defination of accuracy & presicion?

8 Answers   Amneal Pharmaceuticals, GSK,

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using gradient pressure in gas chromatography are not ?using gradient pressure why

0 Answers   Reliance,

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Explain in detail what are the procedure and calculations involved for accuracy (%Recovery)in method validation?

1 Answers   Vimta Labs,

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how to prepare 25 ppm acetone. explian with formula

4 Answers  

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why we are using only lead standard solution for Heavy metals test? what is the purpose of this?

4 Answers   Divis Laboratories,

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which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

0 Answers   Hetero,

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Why Urasil and Caffeine use for HPLC wavelength accuracy calibration. which is most suitable, Why? other than these which can be used?

7 Answers   Cipla,

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