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 2500What is use of LOD and LOQ in validtion and give range and in calculation why we use 3.3* LOD here why we use 3.3
2 5686In 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 10171In 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 6363Post New Analytical Chemistry Questions
why we are using hexane in calibration of number of drop per mL
Is it nessesary all multimedia dissolution require descriminatory?
How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?
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?
Loss of linearity in tkn analysis, possible reasons?
what is mean by dissolution biowaiver study?
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 irmoisture balance is used for corrugated box moisture testing
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?
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
Explain the relations between number of carbon atoms in alkanes and retention time ?
What is delay volume?
we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion
How doing qbd practically?
why does used dry caffien in HPLC calibration?
