if v use HELIUM & ARGON instead of NITROGEN as a mobile phase what happen in GC SYSTEM ?5 8312
why we are using polystyrene film for calibration of I.R spectroscopy?12 48739
why we cannot analysis below 200nm in u.v?2 10994
significane of detector wavelength accrucy in calibration of hplc1 3978
signifcance of detector lenearity in calibration f hplc3 5297
verification of wave number why you are use in IR calibration2 4984
control of resolution in calibration of IR3 6301
defination of wavelength & wave number4 9322
what is difference between IR & FTIR ? how we calibarte both ? I want to know the procedure.7 81858
which brands HPLC COLUMN available in market11 13732
How much is the standard area for glc analysis
what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?
In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]
What is the purpose of octyl silane columns?
we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion
How to check hplc detecter sensitivity?
sop of a uv visible spectrophotometer double beam elico model
in dissolution in one tablets two molecule one is losartan & second is HCTZ losartam is complies in s1 stage & hctz is complies in s2 stage then how to report result losartan s1 stage result or losartan s2 stage result
iam usig ph buffers merk. manually how to prepare ?
In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
What is the difference between spectro meter and spectro photo meter?
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
why 6 tablets use for dissolution