why we use only vanilline , acetanilide,& caffeine For the Calibration of melting point appartus?
7 33227which solvent is highest poler acetonitrile dimethyl formamide methanole tetrahydrofurane buffer solution
8 16477i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me
2734Post New Analytical Chemistry Questions
[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?
WHAT IS THE USE OF STARTER ?????????
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
Why Ethanol is Used for Standardization of GC Head space?
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?
what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means
How to calculate coreletion coefficient
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.
AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
what is mean by nitrosamine impurities?
if you get peak in blank then what require to do?
what type of question will ask in the interview of lab chemist.
What is similarity factor?