Answer Posted / falguni patel
1. Difference in the composition of the sample and mob phase.
2. Often may sample contains extraneous ingredients such as excipients.
3. Sample may not exactly dissolve in mob phase.
| Is This Answer Correct ? | 0 Yes | 4 No |
Post New Answer View All Answers
what you do when compound having dwel wavelength?
Why Ethanol is Used for Standardization of GC Head space?
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
Why six unit used for precision?
What is the Formula for coreletion coefficient in plhplc calibration
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
calibrtion procedue of LC-MS
Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.
what type of question will ask in the interview of lab chemist.
Why we use potassium dichromate in uv calibration Exact reason behind it??
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?
how to get accurate result for Residue on evaporation in purified water
1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.
in OSD forms require to use gas chromatography?