metabisulphite method
Posted: Fri Mar 10, 2006 8:56 pm
does anyone, has ever needed to develop a method for identifying and quantifying metabisulphite sodium in drug formulation? please any help would be greatly appreciated!
sotsam
In solution, metabisulfite is in equilibrium with SO2, HSO3-, H2SO3, SO3=, etc. Any of the usual sulfite methods should work. AOAC 990.31 or the modified method in Dionex App Note 54.