basic of hplc,columns used



basic of hplc,columns used..

Answer / suresh

hplc means high performance liquid chromatography, there
are two types in hplc. normal, reverse phase.
we use only reverse phase because to reduce retention time.

in hplc we use C18,C8,C4,pheno type, cyano type columns in
hplc. carbon chain increses non polarity also increases.

C18 is more non polar than C4

Is This Answer Correct ?    4 Yes 0 No

Post New Answer

More Pharmacy Interview Questions

what do you mean by mean kinetic temperature in stability

2 Answers  


A patient reports not experiencing the desired relief from their anxiety symptoms after a few weeks of Alprazolam treatment. How would you assess and adjust their treatment plan?

0 Answers  


How we define validity of any Reagent , Indicator and Volumetric Solutions

0 Answers  


what is difference between vacuum pressure and vapor pressure

1 Answers  


what is purpose of slow,medium,fast sampling in process validation ?

0 Answers  






what do you mean by Q+5 in dissolution

1 Answers  


what is difference between uv , pda & ri detector ?

1 Answers   Strides Arcolab,


if one drug is acidic in nature and the other drug is basic in nature, e.g. desloratadine is soluble in acidic environment i.e 0.1N HCL whereas Montelukast Sodium is soluble in basic environment i.e. .2% SLS. How can we choose a common media for there Dissolution?

0 Answers  


why we are using toluene in resolution in UV calibration

0 Answers  


What should be the minimum limit of a working standard?

0 Answers  


How do you balance the benefits and risks of Alprazolam treatment when considering its prescription for an elderly patient with multiple comorbidities?

0 Answers  


What is the difference between Specific & Non-Specific Method, and Specific & Non-Specific Tests? Please Clarify

0 Answers  


Categories