What is mean by peak tailing in case of GC?5 10187
What is diffrence between residue on ignition and sulphated ash?36 136561
how can standardized of HCl of 0.1 N7 35074
What is the difference b/w OVI Solvents and Residual Solvents in case of Gas Chromatogaphy and What is its Detection Limit?7 27587
what is the diffrence between absorbance and absorption in the beer,s lamber formula ?2 7462
one gram of which below elements has the most atoms in its? a) H b) D C)T D) He4 3472
0.1 atom gram of the unknown element( X)reacts with 2.4 gram of O2 to produce the oxid product . can you tell us, what is the oxid formula ? a) XO b)X2O3 c)XO2 D) X2O41 1725
Why we use Uracil for HPLC calibration in Detector wave ength accuracy test?5 17946
k.f principle in finding out moisture content1 10356
What is difference btw UV detector & RID detector4 13139
What's the importance of these procedures?1 2813
why we use vanillin in melting range calibration3 8774
What is method validation in quality control
How we can determine water content in piperazine
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
why octanol used to determine the partition coefficient ?
what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
how to select short coloum and long coloumn for new molecule
effect of Ph during analytical run ?
Which std. used for standrdisation of ZnSO4?
what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?
How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample
wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language
What is importance of pH in the Heavy metal test and How it effect on the test results?
In dissolution test s1 stage we are getting one bowl 40 % out of 6 bowls what is the root cause you find and how proceed next step? ( Q is 80%)
why we use a particular hplc column for a particular compound give reasons?please