column washing procedure for normal phase and reverse phase?
Answer Posted / babasaheb gilbile
Reverse Phase: Initially column wash with water and then suitable solvent like methanol or ACN with water (9:1) and after completion of analysis column minimum 1 hrs washed column 50% Methanol solution with water and the % methanol. finally washing with % Methanol and stored in % methanol.
Normal Phase: Column is wash with n-Hexane and stored in % n-Hexane.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is turbidimetric titration?Give 2 examples.
How to set specification of assay, fisdolution and related substances?
what is third integration
what is mean by extactable and leachable study?
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
If vendor having more imp than monograph then how to proceed? and how to set spec?
Why to use propyl paraben in HPLC gradient calibration
if you have given one product then how you determine the impurity in that?
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?
[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?
mode of absorption in alimentary canal?
Why we check moisture,ash & AIA in product
Why use only methanol,used determinationof moisture content not use other solvents
in sampling of raw material which side is pasted sampled labels
WHY given much noise PDA dector then VWD Dector