| 离子色谱法直接测定牛奶中的甜蜜素 |
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| 引用本文： | 邓永利,周光明,罗振亚,黄成.离子色谱法直接测定牛奶中的甜蜜素[J].西南农业大学学报,2007,29(7):79-82. |
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| 作者姓名： | 邓永利 周光明 罗振亚 黄成 |
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| 作者单位： | 西南大学化学化工学院,重庆400715 |
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| 基金项目： | 国家自然科学基金资助项目（20475045）. |
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| 摘 要： | 建立了离子色谱-抑制型电导检测方法分离测定牛奶中的甜蜜素.甜蜜素的线性范围为3.0～80.0 mg/L,相关系数为0.9992,检测限为0.05 mg/L,加标回收率在90.1%～103.3%.实验结果表明,该法测定甜蜜素不需对样品进行预处理,方法简便,稳定性好,重复性好,灵敏可靠.
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| 关 键 词： | 离子色谱 抑制电导检测 甜蜜素 牛奶 |
| 文章编号： | 1673-9868（2007）07-0079-04 |
| 修稿时间： | 2007-03-05 |
Determination of Sodium Cyclamate in Milk by Ion Chromatography |
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| DENG Yong-li, ZHOU Guang-ming, LUO Zhen-ya, HUANG Cheng.Determination of Sodium Cyclamate in Milk by Ion Chromatography[J].Journal of Southwest Agricultural University,2007,29(7):79-82. |
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| Authors: | DENG Yong-li ZHOU Guang-ming LUO Zhen-ya HUANG Cheng |
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| Institution: | School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China |
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| Abstract: | A new method for the determination of sodium cyclamate in milk by ion exchange chromatography with suppressed conductance detection was established in an experiment reported in this paper. The results showed that the linear calibration for sodium cyclamate was in the range from 3.0 to 80. 0 mg/L, with a correlation coefficient of 0. 999 2 and a detection limit of 0.05 mg/L. The recoveries were in the range of 90.1 %-103.3%. This method proved to be highly sensitive, reproducible and reliable, and easy to operate, as pretreatment of the samples was not necessary. |
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