What is the difference between c8 and c18 hplc column?

Answer Posted / ram kumar

Firstly the basic difference is no. of Carbon atoms. C-18 has higher retention and Hydrophobicity as compared to the C-8.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

337


What is the use of tlc and hplc? And when and where use?

655


How would you decide dissolution medium for NCE compound of class I drug

1687


how to select short coloum and long coloumn for new molecule

1809


what is %labelled amount in content uniformity of dosage unit and its calculation?

4609






How to set specification of assay, fisdolution and related substances?

354


in stress study if your api not soluble in hcl naoh h2o2 then what require to do?

316


How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1292


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?

1233


give clarity of linearity and range in method validation

1850


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2132


analytical method validation require to with respect to release specification or shelf life specification?

272


How to know the estimated LOQ concentration in ppm

723


in dissolution why pool sample needed? in which type of drug pool sample need?

2586


mahagenco syllabus for the post of chemist

5735