WHICH PRESSURE IS HIGH EITHER INJECTOR OR DETECTOR IN GAS CHROMATOGRAPHY4 6506
What is the procedure for UV-spectrophotometer calibration?6 53896
What should be the calibration procedure for wavelength accuracy in case of HPLC?4 10494
How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?
How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?
How can we Qualify a unknown impurity by HPLC3 9414
full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ?10 27416
why KBr is used in FTIR SPECTROSCOPY and why is it necessary to triturate KBr during FTIR analysis?25 97842
why water, methanol, ethanol ets solvents are used in UV SPECTRIPHOTOMETER for blank reading ?7 20010
why the same column give different retention time in hplc?7 10390
How will decide to use HPLC OR GC for developing method for unkown compund5 10942
can some other acids like nitric acid or HCl can be used in the calibration of UV.Vis. spectrophotometer????2 6666
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
A ha tc is actual defination of retention time?
WHAT IS THE USE OF STARTER ?????????
what is the disso medium for tropsiun chloride
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.
How to define samples weight in moisture content
What is control room temperature and which guide line says?
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?
How can we calculate offset value pH measurment
what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?
Can we interpret accuracy from linearity in method validation?
in dissolution why pool sample needed? in which type of drug pool sample need?
How can I develope method of dissolution by HPLC OR UV
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?