Explain the relations between number of carbon atoms in alkanes and retention time ?743
Difference between hlaf and rlaf774
What is the main difference between ODS1 and ODS2 Hplc column.2146
How to select Sample concentration in RS analysis?example.1 1569
If we have a kc is1*10^8 and the .kp 2*10^5 of reaction A------->B C------->D what is the volume of C?685
Why void volume(time in seconds) 1 in hplc system suitability1 2671
how will you do the prep for unstable componds?
WHAT IS DIFFERENCE B/W MALTINGRANG/DSC
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 you determine moist.of NaOH sol or NaOH flacks
IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?
what is partion and column chromatography
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
why we should take dst factor for below 1%moisture samples
What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?