wen v have polr solvent then which type of column use in hplc2 5070
why we are using buffer solutionas as a mobile phase in hplc.2 7922
importance of internal standard and in what conditions it is used?1 2323
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,1118
how to select short coloum and long coloumn for new molecule1008
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 1460
why kbr is used for pellet preparation in ir spectroscopy, give the reasons? why kbr shows zero dipole moment?6 10618
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,
why are measure gas flow " ml " in Gas chromatography
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 ?
why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?
for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
Did anybody have method for acetyl cysteine effervescnce tablet
Why we check moisture,ash & AIA in product
In IR spectra, generally a molecule vibrates without apply emr or ir light?
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
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?
What is the diference between residual solvents and organic volatile matter
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?