Abstract
A method for the simultaneous quantitative analysis of methoxyl and acetate groups in pectin has been developed, using h.p.l.c. on a cation exchange resin in the protonated form and refractive index detection. Saponification conditions for release of methoxyl and acetate from pectins for direct injection on the column are described. With this h.p.l.c. method results were obtained which were in reasonable agreement with conventional methods.
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