Dear Sir,
This is Thirunavukkarasu am working in Ordain Health Care
AR&D, Am Having one problem While doing method development
my question Metadoxine and Pyridoxine same chemical nature
and structural activity i tried lot of methods but Analyte
eluted same Retantion time i cant separate both peaks.
solubility, pH both are same only only difference melting
point metadoxine 210 C Pyridoxine 102 C please do the help
needful for me
Answer Posted / swathi
Once u can use hilic silica column ..mostly water %dont exceed 20% in gradient program otherwise phenyl column particle size 3micron..slow gradient ...flow rate decrease..and at which they are eluting there keep isocratic for 30 min
Is it the compounds are different?
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
In performance Check of GC Why Hexadecane Peak is ConsideredÂ
what are the standard methods for HPLC?
if tech transfer fails whay require to do?
What is aggregate and fragments in SEC?
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
please explain about aluminium hydroxide assay
which batch require to use for analytical method validation?
why salisylic acid not using now days for disdolution calibration?
what is classification of elemental impurities? what is risk assement in elemental impurities?
In the isomers,enantiomers give the only physical properties present such that no chemical properties present.
How would you decide dissolution medium for NCE compound of class I drug
Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .
what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?
how to set sample and standard concentration in RS method?
What is shaking level in GC?