What are the different types of columns used in HPLC

Answer Posted / pramada

Zorbox and Agilent, Inertisil ODS ,C18 ,C8

Is This Answer Correct ?    7 Yes 8 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How do we fix the sample concentaryion in hplc method development?

667


WHY pKa value is more important than pH value of the mobile phase in HPLC?

1259


when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.

1522


how decide the clining method and cleaning method validation require for this perticular products?

301


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?

1792






for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

5302


What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1146


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

1312


what is mean by dissolution hydrodynamics?

352


Which parameter require to do for analytical method equivalency?

324


if rsd failed then what require to do?

326


what is mean by covalidation

318


If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

529


What is diffrence between extractable volume and deliverable volume? Answer pls

3932


My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1111