| 微波消解/干灰化-分光光度法测定面制食品中的铝 |
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| 引用本文： | 卞金辉,张晓卫,倪巍巍.微波消解/干灰化-分光光度法测定面制食品中的铝[J].化学研究,2011,22(2):61-64. |
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| 作者姓名： | 卞金辉 张晓卫 倪巍巍 |
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| 作者单位： | 洛阳市质量技术监督检验测试中心,河南,洛阳,471000 |
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| 摘 要： | 采用微波消解法和干灰化法对面制品进行前处理,用分光光度法测定面制品中的铝含量,建立了微波消解/干灰化-分光光度法测定铝的方法.实验结果表明,本方法前处理简单,检测结果准确度高,精密度好,在0～10μg/25 mL线性范围内:相关系数r=0.999 5,方法检出限为0.2 μg/25 mL,样品的加标回收率在92.0 %...
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| 关 键 词： | 微波消解法 干灰化法 分光光度法 铝 面制品 |
Determination of aluminum in flour products by microwave digestion/dry ashing-spectrophotometry |
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| BIAN Jin-hui,ZHANG Xiao-wei,NI Wei-wei.Determination of aluminum in flour products by microwave digestion/dry ashing-spectrophotometry[J].Chemical Research,2011,22(2):61-64. |
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| Authors: | BIAN Jin-hui ZHANG Xiao-wei NI Wei-wei |
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| Institution: | BIAN Jin-hui,ZHANG Xiao-wei,NI Wei-wei(Center of Inspection and Testing of Quality Technology Supervision of Luoyang City,Luoyang 471000,Henan,China) |
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| Abstract: | A microwave digestion/dry ashing-spectrophotometric method was established to determine Al in flour products,with which the flour products were pretreated by microwave digestion and dry ashing,followed by measurement of Al via spectrophotometric route.It has been found that the established method is simple,accurate and precise,having a linear range of 0-10 μg/25 mL,correlation coefficient of 0.9995,detection limit of 0.2 μg/25 mL,an average standard addition recovery of 92.0%-101.0%,and RSD of 0.98%-4.56%. |
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| Keywords: | microwave digestion dry ashing spectrophotometry aluminum flour products |
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