perchloric acid&glacal acetic acid both are acids but reaction is complete in volumetric titrations.how?1 8196
acetic acid is weak acid & perchloric acid is strong acid.but how perchloric acid is soluble in acetic acid3 7766
Column selection in HPLC method development?1 9439
How to prepare ppm solution of Nacl form its salt?5 53405
what is mean by assay?6 15664
why we are doing seal wash and needle wash?3 11147
which functional group we can detect in IR?3 8394
what is mean by UOD?2 6998
what is mean by content uniformity?5 6331
today i am doing calibration of HPLC. when i inject the blank it was going on -ve.(bleow then zero) why?3 7168
what are the sources in ELSD,PDA, RI and UV Detectors?1 6056
in karl fischer reagent which solvent is used for dissolving iodine sulphur dioxide and imidazole4 7324
How can we calculate offset value pH measurment
How to do regeneration of Metacarb Pb plus column?
IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?
What is the difference between purge septum flow and column flow in gas chromatography?
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
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.
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
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
what is third integration
What is importance of pH in the Heavy metal test and How it effect on the test results?
how will you do the prep for unstable componds?
In Dissolution Test why limit is define Q+5% what is the role of +5%.
What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?