how can delete the impurity in 1-(2:6 dichloro phenyl)-2-indolenone.and desolving the impurity in which solvent but does not desolve product in solvent.
1 3123in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.
2 9485what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
2629WHEN AN UN KNOWN SAMPLE IS GIVEN TO U,HOW WILL U START THE ANALYSIS(ie FIRST WHICH TEST TO BE DONE,NEXT,THEN NEXT),HOW WILL U DECIDE WHICH TYPE OF ANALYSIS TO BE DONE FOR IT?
2 10938Post New Analytical Chemistry Questions
about method developement in hplc
What is third generation HPLC Columns?
Why use only methanol,used determinationof moisture content not use other solvents
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
if tech transfer fails whay require to do?
EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE
How can I develope method of dissolution by HPLC OR UV
can i use hplc detector to uplc and why?
How doing qbd practically?
what type of question will ask in the interview of lab chemist.
Why sodium hydroxide used for maintain pH of phosphate buffer
What is diffrence between extractable volume and deliverable volume? Answer pls
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
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 biorelivent dissolution media?