Difference between c18

Answer Posted / p.chandra sekhar reddy

IN C18 COLUMN 18 CARBONS ATTACHED TO SILICA GROUP ,AND IN C8 COLUMN 8 CARBONS ATTACHED TO SILICA GROUP,AND ALSO C18 COLUMN HAS MORE HYDROPHOBIC THAN C8 COLUMN DUE TO LONGER CHAIN OF CARBONS. C 18 WIDELY USED BCOZ IT GIVES BETTER SEPARATION.

Is This Answer Correct ?    21 Yes 4 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

which batch require to use for analytical method validation?

341


Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1230


Identify problem faced when mass spectroscopy is used with HPLC system ?

1387


Loss of linearity in tkn analysis, possible reasons?

808


How doing qbd practically?

434






why we are using benzene, anyline in acetic anhdride assay titration method?

1583


is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

1670


A ha tc is actual defination of retention time?

1067


how can I make the copper get white bye any salt or acit?

1667


Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2397


In Assy by potentio metry titration method how select MET U ,DET U, SET U,

1317


For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1256


Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

2478


What is third generation HPLC Columns?

1517


sop of a uv visible spectrophotometer double beam elico model

5358