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In burette calibration of Karl fischer Instrument, the multiplication factor 1.00693 is using for how much ml of water dispenced. why
1 4494In UV-VIS spectrophotometer:My diluent is methanol even though i corrected base line for methanol,In my sample scan i found methanol peak.what is the reason?
2 10364What is the diffrence between the performing of LOD ordinary drying at voven and vaccum method.
Apex,
4 11044how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
2364in hplc calibration we are using 0.05% acetone why we are using that one and what happen when its conc increases or decreases
4 32307what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
10065Post New Analytical Chemistry Questions
In which situation we require to prepare the standard solution from sample in Related substance method?
WHY given much noise PDA dector then VWD Dector
how to qualify the impurity?
why we are using hexane in calibration of number of drop per mL
A ha tc is actual defination of retention time?
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
What is split ratio in Gc? Splitless? how requirr to select?
why xterra column require to use at higher ph?
why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?
How to set analyticl specification for combination products?
What is viod volume and peak purity in HPLC?
What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?
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?
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
Why are use silicon oil mr?
