In pharmacopeal solibility parameter of a material, is et essential to test all paramete? If 70-75% parameter passes can we assess that the material is satisfactory or not?1 3168
Why triethylamine and o-phosphoric acid used while setting pH of mobile phase during HPLC Analysis?6 22206
why RID detector is used for selective materials like Mannitol, Hydroxyethyl Starch and Sorbitol?5 7207
for which type of applications gas chromatography is used?2 3996
for which type of applications gas chromatography is used?2 4002
wat is reverse phase in hplc2 6058
For Dissolution test why we are Performing 6 Bowls why not more.any were mentioned or in what basis we are performing? --------Veerabhadrarao.M2 8413
In Number of Theoretical Plates (N) = 16 (tr/w)2. where tr: retention time, and W: peak width. My Question is here in formula what is 16.Can u explain briefly? ---Veerabhadrarao.M3 13760
how to Calibrate FID IN GC1 5020
what is assay in hplc3 7786
why we use deturium lamp in uv spctrophotometer other than lamps1 7492
A new drug substance found fail to meet specification for an unknown Impurity during stability study(Specific change),how would further proceed?2 4535
what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?
Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?
using gradient pressure in gas chromatography are not ?using gradient pressure why
WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE
how to calibrate hplc & gc
How to calculate coreletion coefficient
why we are using hexane in calibration of number of drop per mL
How to start the dissolution development for unknown tab?
How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?
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?
cefoperozone and sulbactam inj. hplc test method
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?
why we are using benzene, anyline in acetic anhdride assay titration method?
How to check hplc detecter sensitivity?