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 |
What is the Calcultion of S/N Ratio.
In which situation we require to analytical method validation of excipient?
why xterra column require to use at higher ph?
why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate
Why dissolution test apparatus calibration with salycilic acid tablets was stopped by FDA&USP from the year of 2009?
what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?
in which situation ion pair agent require to use?
What is the use of tailing factor ?
why inject diluted standard solution in related substance analysis by HPLC?
why we are performing residue on ignition?
what is the Bracketing & Matrixing.
Difference between c18
6 Answers Apothecon, Dr Reddys, Intas, IPQA, SUN, Torrent Pharma,