SCIENCE AND TECHNOLOGY OF CEREALS, OILS AND FOODS

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Home > Archive>Volume 22, Issue 4, 2014 >58-60
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Determination of phosphate in wheat flour products by microwave digestion-ion chromatography
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    Abstract:

    Phosphate in wheat flour products, which was pretreated by microwave digestion technique, was determined by ion chromatography equipped with a conductivity detector. The chromatographic column was IonPac AS19（4×250 mm）and the mobile phase was 35 mmol/L KOH solution at a flow rate of 1.0 mL/min. The result showed that the recovery rate for this method was 97.0%~115.0% and the relative standard deviation was less than 0.5% .The linear regression coefficientwas higher than 0.999 within the concentration range of 1.0〖KG-*3〗~50.0 mg/L. As a simple and rapid testing, this method showed satisfied accuracy and was suitable for the determination of phosphate in wheat flour products.

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  • Online: July 29,2014
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