E. Ruiz et al., DETERMINATION OF WATER-SOLUBLE INORGANIC PHOSPHATES IN FRESH VEGETABLES BY ION CHROMATOGRAPHY, Journal of liquid chromatography, 18(5), 1995, pp. 989-1000
An alternative Ion Chromatographic method has been developed for selec
tive separation and quantitation of water-soluble inorganic phosphate
in aqueous extracts of vegetables, based on the use of an anion-exchan
ge polymethacrylate column, borate/gluconate as eluent and conductivit
y detection. The method shows a good detection limit as well as a high
chromatographic resolution. It is also applicable to the detection of
phosphates in fresh vegetables.