| 植酸磷的测定──离子交换法 |
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| 引用本文： | 项明燕,雷嗣安.植酸磷的测定──离子交换法[J].卫生研究,1994,23(1):45-48. |
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| 作者姓名： | 项明燕 雷嗣安 |
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| 作者单位： | 北京儿科研究所营养研究室，中国预防医学科学院营养与食品卫生研究所 |
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| 摘 要： | 介绍用离子交换法测定植酸磷的含量。对消化终点、最适的提取时间、离子交换树脂的分离效果进行了试验。黄豆粉、窝窝头、豆腐干植酸测得值的变异系数分别为２．１６％、４．９２％、１．７８％，回收率依次为１０３．３８％、１０２．８１％、１０３．４１％。植酸标准品的植酸含量理论值为５７．６４％，本法测定值为５５．２３％，相对误差为２．１４％。本法的精密度及准确度均符合要求。
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| 关 键 词： | 植酸盐，离子交换法，消化 |
Determination of phytate with ionexchange method |
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| Xiang Mingyan, Lei Sian, Liu Sheng jie.Determination of phytate with ionexchange method[J].Journal of Hygiene Research,1994,23(1):45-48. |
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| Authors: | Xiang Mingyan Lei Sian Liu Sheng jie |
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| Abstract: | The authors tested the end point of digestion, appropriate extraction time and effect of ion-exchange resin on separation of phytate from inorganic phosphorus.The coefficients in determination of phytate in soybean flour, steamed bread of corn and dried bean curd were 2.16%, 4.92% and 1.78%, and recoveries were 103.38%, 102.81% and 103. 41% respectively. The content of standard phytate was 57.64%, our determination was 55.23% and the relative error was 2.14%, Both precision and accuracy of this method were satisfactory. |
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| Keywords: | Phytate ion-exchange method digestion |
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