you use the methanolysys to "derivaze" the carboydrate, no? Trimethylsilyl is the group? trimethylsilyl chloride is you reagent?

Silver carbonate is needed to remove the cloride ions from the solution.... I have in mind that it is necessary, because silver formed ansd insoluble chloride...

You may try silver oxide, oy thallium carbonate (is very toxic!) but silver carbonate is easy to prepair!

see this paper or this book:

C. Xi et al; Applied Surface Chemistry, , 257, (20), 8732-8736 (2011)

G. Brauer etc al, "Handbook of Preparative Inorganic Chemistry." , Academic Press, New York, Second Edition, Page 1048 (1965).

Isd along known compound, easily prepared by precipitation of an aqueous solution of silver nitrate with the stoichiometric ammout of sodium carbonate. filter the compound, and wask with water.

is a dark brown solid, somewhat sensitive to light, and is very used as starting material for making other silver salts.

Dear Nancy Varela,

Up to my knowledge, using of Ag2CO3 for neutralization is needed.

Dear Nancy Varela,

Please, find in attach, a paper on:

Derivatization of carbohydrates for GC and GC–MS analyses

A.I. Ruiz-Matutea, O. Hernández-Hernándezb, S. Rodríguez-Sánchezb, M.L. Sanzb, I. Martínez-Castro

Dear Nancy Varela,

Please, find in attach, a paper on:

Carbohydrate analysis by methanolysis method and application to compositional analysis of transparent exopolymer particles

Thank you for your help. I was able to prepare Silver carbonate, and it seems to improve the assay and the chromatograms have less noise than before.