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estimation of Sod. Metabisulphite
Posted: Mon Jul 11, 2005 9:02 am
by JM
Dear all,
I am looking for a sensitive method of estimation of SMS by HPLC down to ppm level.
JM
Posted: Mon Jul 11, 2005 6:16 pm
by Mark Tracy
In solution, metabisulfite is in equilibrium with SO2, HSO3-, H2SO3, SO3=, etc. Any of the usual sulfite methods will work. AOAC 990.31 or the modified method in Dionex App Note 54.
Posted: Tue Jul 12, 2005 5:35 am
by JM
Thanks Mark,
is it possible to analyse SMS by UV detection ?? as my formulation analysis uses UV detection.
JM
Posted: Wed Jul 13, 2005 5:39 pm
by Mark Tracy
I can't find the details, but according to Chris Pohl, UV is a viable option for detecting sulfite.