what r the reasons to get peak telling?
Answers were Sorted based on User's Feedback
Answer / ravi kumar
due to the presence of residual silanols on the reverse
phase column which interacts with acids or bases (mostly
bases)cause them to tail
| Is This Answer Correct ? | 19 Yes | 1 No |
Answer / nageswar rao
the following parametrs are reasons
1.silinol interaction of basic amines
2.adsorption of acidic compounds
3.mass overloaded
4.injecting sample in worng solvent significantly stroger
than mobile phase
| Is This Answer Correct ? | 15 Yes | 1 No |
Answer / nagesh.v@sai advantium.com
Due to column efficiency Decreaced
| Is This Answer Correct ? | 11 Yes | 2 No |
Answer / subash
The following reasons are causes of peak tailing
1.Injecting the sample in a solvent significantly stroger
than the mobile phase
2.Interaction of stationary phase silanols with basic
analyte
3.Adsorption of acidic compounds on the stationary phase
4.Sample mass overloaded
5.A void in the column packing bed
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / t.venkata reddy
below reasons causes peak tailing
1)Analytical column contaminated
2)Mobile phase contamination/deterioation
3)unswept dead volume
4)basic substance-silanol interation.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / palabindela
column over loaded or high injection volume
| Is This Answer Correct ? | 0 Yes | 2 No |
how to regulate noise in HPLC?
2 Answers Alkem Labs, Vimta Labs,
In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?
why we are used 4,7,9,2 buffers for the ph calibration
4 Answers Aurobindo, Enaltec Labs,
In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?
What are the limits for uniformity dosage content for tablets and capsules
how can delete the impurity in 1-(2:6 dichloro phenyl)-2-indolenone.and desolving the impurity in which solvent but does not desolve product in solvent.
What is FDA form 482c?
Explain in detail what are the procedure and calculations involved for accuracy (%Recovery)in method validation?
How do we fix the sample concentaryion in hplc method development. what is the basis?Thanks in advance
4 Answers DRL, Glenmark, Orchid,
What is intact assay method development.....?
What is unit of KF?
In HPLC when we use Isocratic method, Gradient method in hplc?