water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.
Answer Posted / prashant
It based on affinity of eluting substance with stationary phase/mobile phase.if compound elute earlier when we increase ACN obviously compound has more affinity with ACN (towards nonpolar) so it breaks wonderwal bonds with stationary phase and elute earlier
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
If vendor having more imp than monograph then how to proceed? and how to set spec?
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
in which situation require to change rs specification?
if you have given a blank water how you analyse by general analytical techniques?
Why dissolution test is not performed in all of the products
WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?
if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?
how require to interprit the method precision data of hptlc?
What is rs test why we are performing rs test?
why require to add enzymes in capsules dissolution only? is it require to tablet also?
how decide the clining method and cleaning method validation require for this perticular products?
which are the sizes of capsules?
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
mahagenco syllabus for the post of chemist
WHY given much noise PDA dector then VWD Dector