What is the difference between Normal phase method &
Reverse method in HPLC ? Define application of both method.
Answers were Sorted based on User's Feedback
Answer / k l srinivas
Normal phase: Stationary phase is polar, mobile phase is non
polar,
Reverse phase: Stationary phase is non polar, mobile phase is
polar.
| Is This Answer Correct ? | 57 Yes | 1 No |
Answer / maulik
Normal phase: Stationary phase is polar, mobile phase is non
polar,
Reverse phase: Stationary phase is non polar, mobile phase is
polar.
normal phase is based on the adsorption phenomenon and
reverse phase is based on the partition phenomenon
normal phase used for chiral compound and reverse phase used
for other
| Is This Answer Correct ? | 20 Yes | 2 No |
Answer / srikanth
above answer is perfect and also,,,....
Normal Phase: separates analytes on the basis of their
affinity for a polar stationary surface such as silica.
Reversed Phase: separates on the basis hydrophobic
interacertions, which originates from the high symmetry in
the dipolar water structure
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / ram krishna
Normal phase _Column is polar and more is non polar sudh as IPA hexane
Reversed phase_Column is non polar and more is polar such as water and acetonitrile mp
| Is This Answer Correct ? | 2 Yes | 0 No |
what is lod and loq
What is difference between" LOD" AND "VACCUME LOD"
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
Optical Rotation*0.9477*100*200] Assay Of dextrose= ________________________________ 99.8* 200 why Factor=0.9477
1 Answers Claris Lifesciences, Inven Pharmaceuticals, Levo,
How we can determine water content in piperazine
What is the reason of RT change in new column v/s old column in HPLC
in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?
how many types of balance calibration test?
in which situation require to use paddle and basket?
How we fix the validity period of a Normal solution and re-standardization due date
As per USP what is RSD limit of volumteric solution of three replicate analysis
why has inject 6 injection in Releted compounds