if v use HELIUM & ARGON instead of NITROGEN as a mobile phase what happen in GC SYSTEM ?5 8221
why we are using polystyrene film for calibration of I.R spectroscopy?12 48373
why we cannot analysis below 200nm in u.v?2 10905
significane of detector wavelength accrucy in calibration of hplc1 3937
signifcance of detector lenearity in calibration f hplc3 5238
verification of wave number why you are use in IR calibration2 4940
control of resolution in calibration of IR3 6227
defination of wavelength & wave number4 9235
what is difference between IR & FTIR ? how we calibarte both ? I want to know the procedure.7 81572
which brands HPLC COLUMN available in market11 13588
how to get accurate result for Residue on evaporation in purified water
what is peak purity and its formula
what are the standard methods for HPLC?
how to calibrate hplc & gc
USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
what is %labelled amount in content uniformity of dosage unit and its calculation?
As per ICH related substances stability trend limit from initial to shelf life
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
Tell me something about Vitamin A test method by HPLC
pharma industries oriented
what is the origin to prepare standard operating procedure
what is the structure of DOWEX-50
What is the difference between purge septum flow and column flow in gas chromatography?
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
what is definition of validation? which components are followed give detail?