A method to determine phytic acid within urine in the range 0.15–2 mg/l is reported. The method is based on the ICP atomic emission spectrometric determination of phosphorus, after previous separation and concentration of phytic acid using the anionic resin AG1-X8. The method has been applied successfully to determine phytic acid in synthetic urine and human urine.
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Gráses et al. (1996) studied this question.
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