Comparison of high-performance ion chromatography and absorptiometric methods for the determination of phytic acid in food samples

The objective of this paper consists in defining the interest of a new high -performance ion chromatography method (HPIC) with chemically suppressed co nductivity detector for phytic acid determination in food samples. Firstly, accuracy and precision of the HFIC method have been measured. Secondly, Th e HPIC method and a classical absorptiometric method were compared. The HPI C method was more sensitive and selective than the absorptiometric method w hich leaded to an 27% overestimation of the phytic acid content in legume s eeds. Because of it is rapid and easy to perform, the NPIC method appears t o be particularly suitable for routine analysis of food samples.