| 小麦粉及小麦粉制品中溴酸盐的测定 |
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| 引用本文： | 陶大利,苑向杰.小麦粉及小麦粉制品中溴酸盐的测定[J].生命科学仪器,2012,10(2):19-21. |
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| 作者姓名： | 陶大利 苑向杰 |
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| 作者单位： | 1. 黑龙江省农垦乳品检测中心,黑龙江哈尔滨,150078
2. 黑龙江省完达山乳业股份有限公司,黑龙江哈尔滨,150078 |
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| 摘 要： | 建立离子色谱法测定小麦粉及其小麦粉制品中溴酸盐的测定方法。采用的色谱柱为戴安的AS19（250×4.6mm）,淋洗液（流动相）为KOH溶液。用纯水提取样品中溴酸根离子（BrO3-）,经RP（C18）柱除去样品中得有机物,经Ag/H柱除去样品提取液中干扰氯离子（Cl-）,采用离子交换色谱-电导检测器测定,外标法定量,经测试溴酸盐在0.05～2.0μg/mL范围内,线性良好,线性方程为y=1.435x-0.031,相关系数R=0.9998,添加浓度在1.60mg/kg～4.80mg/kg范围内,平均回收率在97.5%～98.4%之间。
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| 关 键 词： | 离子色谱 小麦粉 溴酸盐 Ag/H柱 RP（C18）柱 |
Determination of Bromate in Wheat Flour and Wheat Flour Products |
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| Tao Dali,Yuan Xiangjie.Determination of Bromate in Wheat Flour and Wheat Flour Products[J].Life Science Instruments,2012,10(2):19-21. |
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| Authors: | Tao Dali Yuan Xiangjie |
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| Affiliation: | 1.Heilongjiang Agriculture Dairy Testing Center;2.Heilongjiang Wondersun dairy co.,LTD,Harbin 150078,China) |
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| Abstract: | A method for determination of bromate in wheat flour and wheat flour products by Ion chromatography method is reported.The chromatographic column for DIONEX AS19（250mm×4.0mm）,eluent（mobile phase） for KOH solution,Conductivity detector,extraced by pure water samples of bromate ion（BrO-3）,RP（C18） column was used to remove the organic matter,the Ag/H column to remove sample extraction liquid disturbance in the chloride ion（Cl-）,using ion chromatography conductivity detector for the determination,quantified by external standard method.Linear ranges of lutein was 0.05～2.0μg/mL,the linear equation was y=1.435x-0.031,relevant index R2=0.9998;Concentration in the 1.60mg/kg～4.80mg/kg range,the average recovery rate were 92.8～103.5%. |
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| Keywords: | Ion chromatography wheat flour bromate Ag/H column RP（C18）column |
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