How to determine water content of thioanisole? which
interfere by KF titration?
Answer Posted / ashok babu jha
Procedure:
30 mL methanol +3 g imidazole +1g N-
Ethylmaleinimide . Titrte to dryness , add approx.03 g
sample from a dry syringe without needle , allow to react
under stirring for 5 min and then titrate the water content
with KF reagent.Ethylmaleinimide form covalent bonds with
sulfhydryl groups at pH 6.5-7.5 .
Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?
in which situation require to use paddle and basket?
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?
what are the guidelines for analytical method validations?
how will you do the prep for unstable componds?
how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,
What is the Formula for coreletion coefficient in plhplc calibration
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
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
which are the sizes of capsules?
why we are using hexane in calibration of number of drop per mL
what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?
why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
sop of a uv visible spectrophotometer double beam elico model