Answer Posted / jayalakshmi
Volume of the mobile phase which is required to elute the
unretaind compound from the column is so called dead volume.
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
if you given one product then which tests you will perform?
what is the extinction coefficient for Indomethacin or at 319nm wave length.
what you do when compound having dwel wavelength?
mahagenco syllabus for the post of chemist
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
How we choose the mobile phase for method development.?
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
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?
how to calibrate hplc & gc
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?
How do we fix the sample concentaryion in hplc method development?
function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?
why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space
We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?