wen v have polr solvent then which type of column use in hplc2 4973
why we are using buffer solutionas as a mobile phase in hplc.2 7808
importance of internal standard and in what conditions it is used?1 2239
how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,1089
how to select short coloum and long coloumn for new molecule952
my name is santhosh i cmpleted b.pharmacy in 2009 then i went to uk in 2010 to pg diploma business management. after i came back to india.. recently again apply to uk for pharmaceutical analysis. they refused my visa you failed to explain y u r change subject. so plz ineed answer for y change the cource1 1418
why kbr is used for pellet preparation in ir spectroscopy, give the reasons? why kbr shows zero dipole moment?6 10417
What is viod volume and peak purity in HPLC?
Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
What is Band broading effect explain
How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.
Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?
mode of absorption in alimentary canal?
What is third generation HPLC Columns?
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?
What is stray light in uv what are units for stray light
what is difference between zero air gas and o2 gas
How to do regeneration of Metacarb Pb plus column?
Why potassium dichromate was using in Uv calibration?