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why hexane is used for FID calibration in GC
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- Glochem, I also Faced
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what type of question will ask in the interview of lab chemist.
0 Answers Godavari Biorefineries, Monginis,
Why Na lamp is used in polarimeter?
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
why RID detector is used for selective materials like Mannitol, Hydroxyethyl Starch and Sorbitol?
Why only 1.2 million lux hours require in photostability study?
Why we use potassium dichromate in uv calibration Exact reason behind it??
If compound Pka is 5 then which buffer you will select ?
Why we are having specification 100% above in case of assay as there is only 100% of compound?
2 Answers MSN Pharma, Nectar Lifesciences,
Nitrogen test is used for which chromatography?
Basic principle of ESI?
how does h2so4 prevent oxidation of mohr salt before it is titrated?
Why 1.2% KCl is used for limit of stray light? and why limit of stray light is required in UV calibration?
Organic Chemistry 
