| 离子色谱法测定食品添加剂磷酸二氢铵中氟离子含量 |
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| 引用本文： | 王 娜,张 敏,刘 鹏,神兴明. 离子色谱法测定食品添加剂磷酸二氢铵中氟离子含量[J]. 中国无机分析化学, 2014, 4(1): 25-27 |
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| 作者姓名： | 王 娜 张 敏 刘 鹏 神兴明 |
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| 作者单位： | 山东金正大生态工程股份有限公司 山东 临沭 276700;山东金正大生态工程股份有限公司 山东 临沭 276700;山东金正大生态工程股份有限公司 山东 临沭 276700;山东金正大生态工程股份有限公司 山东 临沭 276700 |
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| 摘 要： | 建立了离子色谱测定食品添加剂磷酸二氢铵中的氟离子含量的方法。结果表明,在最佳实验条件下,食品添加剂磷酸二氢铵中的NH4+,PO43-及SO42-等杂质均不干扰F-的测定。采用标准曲线法定量,F-浓度在4~50μg/mL的范围内,线性方程为y=0.099 48x-0.108 0,线性相关系数为0.999 9,方法的检出限为0.15μg/mL,加标回收率为96.9%~101.6%,该方法具有简单、快速、重现性好等优点。
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| 关 键 词： | 离子色谱法 食品添加剂磷酸二氢铵 氟离子含量 |
| 收稿时间： | 2013-10-06 |
| 修稿时间： | 2013-11-14 |
Determination of Fluoride in Food Additive- Ammonium Dihydrogen Phosphate by Ion Chromatography Method |
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| WANG N,ZHANG Min,LIU Peng and SHEN Xingming. Determination of Fluoride in Food Additive- Ammonium Dihydrogen Phosphate by Ion Chromatography Method[J]. Chinese Journal of Inorganic Analytical Chemistry, 2014, 4(1): 25-27 |
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| Authors: | WANG N ZHANG Min LIU Peng SHEN Xingming |
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| Affiliation: | Shandong Kingenta Ecological Engineering Co., Ltd. Linshu, Shandong 276700,China;Shandong Kingenta Ecological Engineering Co., Ltd. Linshu, Shandong 276700,China;Shandong Kingenta Ecological Engineering Co., Ltd. Linshu, Shandong 276700,China;Shandong Kingenta Ecological Engineering Co., Ltd. Linshu, Shandong 276700,China |
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| Abstract: | A method for the determination of fluoride in food additive-ammonium dihydrogen phosphate by Ion Chromatography was studied in this paper. The results show that the impurities such as NH＋ , PO34- and SO24- do not interfere with the determination of F- under the optimal experimental conditions. When F- concentration is in the range of 4-50 μg/mL, the linear equation is y=0. 099 48x-0. 107 9 with the linear correlation coefficient of 0. 999 9. The detection limit of the method is 0. 015 μg/mL and the recoveries are between 96.9% to 101.6%. This method has the advantages of simplicity, fast speed and good reproducibility. |
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| Keywords: | ion chromatography food additive-ammonium dihydrogen phosphate content of the fluoride |
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