Why we are performing wavelength accuracy at lower and higher wavelengths in HPLC calibration3 9439
what is the identification test of volatile substance? what is volatile compound?1 1192
what is differance between volatile and non volatile compound expalin by exaple2 12494
Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?1 2101
In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?8 48338
In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?1 7400
Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?5 16399
what is the use of performing tapped density in pharmaceutical industry1 8313
What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.
What is third generation HPLC Columns?
what is %labelled amount in content uniformity of dosage unit and its calculation?
In Dissolution Test why limit is define Q+5% what is the role of +5%.
WHAT IS THE USE OF STARTER ?????????
Why sodium hydroxide used for maintain pH of phosphate buffer
We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy
WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?
when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
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
in dissolution why pool sample needed? in which type of drug pool sample need?
why are measure gas flow " ml " in Gas chromatography
what is procedure of actual procedure for registration of drug?