why we need to do karl ficher fector ?
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Answer / kishor solanke(alkem)
Because the straingth of karl fischer reagent is not stable
due its chemical composition thats why we have to datermine
the KF factor in each 24 hrs. interval (Daily
standardization).
Is This Answer Correct ? | 27 Yes | 2 No |
what is the limit for KF Factor ,we take factor using water we will found factor between 6 to 7 ,while on KF Reagent bottle mentioned 5 mg/ml water content.if we not use dried methanol it is effect on factor.
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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
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