What is the Column Endcaping in HPLC ?
Answers were Sorted based on User's Feedback
Answer / rajkumar
In columns Stationary phase is Organic phase is coated over
the Silica surface. But during manufacturing it is not
possiable that all active sites(Silica surface)are coated
with organic phase there will be some vacant areas. In that
areas it is possiable to coat with Long chain Organic phase.
so small chain such CH3 is coated in that areas.
| Is This Answer Correct ? | 17 Yes | 1 No |
Answer / suresh palacharla
A reversed-phase HPLC column that is end-capped has gone
through a secondary bonding step to cover unreacted silanols
on the silica surface.
| Is This Answer Correct ? | 10 Yes | 0 No |
Answer / ganesh bhavar
for endcapping in reversed phase column use Trimethylamine
means it protect the OH-group silanol group
| Is This Answer Correct ? | 2 Yes | 4 No |
why we are using buffer solutionas as a mobile phase in hplc.
all types of questions asked at the cipla interview
0 Answers Aurobindo, Calyx, Cipla, Graviti Pharmaceuticals,
What is unit of KF?
What is rs test why we are performing rs test?
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?
defination of wavelength & wave number
why holmium perchloate solution in Uv calibration
Data was integrated with RRT CONCEPT OR Overlay with SSTchrmatogram concept which is better?
for which product require to do content uniformity? what is limit of cu?
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?
What is definition of RRT and what is the difference between RT and RRT in HPLC
In which cases factor of KF Reaget got higher side