why using buffers in hplc inteed of water5 9953
How long we can use hygroscopic reference standard in terms of water absorb.I mean in line with respective monograph's specification or more than that?1 1680
Why we use methy Ethyl Propylparabine For HPLC Calibration1 3893
What is use of LOD and LOQ in validtion and give range and in calculation why we use 3.3* LOD here why we use 3.32 3960
In specificity what parametrs are consider why that parametrs2 4506
ash or residue in that what will be there.3 3824
what is the differance between Analytical and semi micro balance?2 10929
In the method validation proceedure,lod & loq calculation we use the formulae for LOD=3.3*SD/slope and for LOQ=10*SD/slope,why we use 3.3 & 10 in the formulae?1 9167
In HPLC Chromatographic separation Resolution equation is Rs = 1.18 (tR2 –tR1)/wh1+Wh2, Where, tR2 and tR1 is run time of eluent ratios of the distances from the point of application to the centers of the spots and the distance travelled by the solvent front from the point of application (retardation factor), and Wh1and Wh2 , is peak width of at half height. What is 1.18 ?1 4530
What are the primary considerations in extractables and Leachables ?
How to fix the sample conc. in Related substances test by HPLC?
What is rs test why we are performing rs test?
Identify problem faced when mass spectroscopy is used with HPLC system ?
why does used dry caffien in HPLC calibration?
What is delay volume?
what is the principle involved in turbidometry and nephelometry ?
HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.
can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?
Basic principle of ESI?
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.
mode of absorption in alimentary canal?
What is the purpose of octyl silane columns?
pharma industries oriented
Tell me something about Vitamin A test method by HPLC