| 离子色谱法同时测定食品中3种甜味剂和2种防腐剂 |
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| 引用本文： | 李静,王雨,梁立娜. 离子色谱法同时测定食品中3种甜味剂和2种防腐剂[J]. 食品科学, 2011, 32(12): 239. DOI: 10.7506/spkx1002-6630-201112052 |
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| 作者姓名： | 李静 王雨 梁立娜 |
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| 作者单位： | 戴安中国有限公司应用研究中心; |
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| 摘 要： | 使用IonPac AS17-C低疏水性阴离子交换色谱柱分离,两阶等浓度淋洗液洗脱,电导方法检测,研究食品中3种甜味剂(甜蜜素、安赛蜜和糖精钠)和2种防腐剂(山梨酸钾和苯甲酸钠)的同时分析方法。不同种类的食品经过直接稀释或水提后,样品溶液通过Cleanert C18柱去除有机物质。实验结果表明将样品溶液pH值调整至9～10后再通过C18柱净化,可以确保食品溶液中5种添加剂不在前处理柱上发生吸附作用,获得良好的加标回收率。该方法分析速度快、灵敏度高,结果准确可靠,适用于多种食品中上述甜味剂和防腐剂的测定。
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| 关 键 词： | 甜味剂 防腐剂 离子色谱 食品质量分析 |
Simultaneous Determination of Sweeteners and Preservatives by Ion Chromatography Method |
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| LI Jing,WANG Yu,LIANG Li-na. Simultaneous Determination of Sweeteners and Preservatives by Ion Chromatography Method[J]. Food Science, 2011, 32(12): 239. DOI: 10.7506/spkx1002-6630-201112052 |
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| Authors: | LI Jing WANG Yu LIANG Li-na |
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| Affiliation: | LI Jing,WANG Yu,LIANG Li-na(Application Research Center,Dionex China Co.Ltd.,Beijing 100085,China) |
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| Abstract: | A simultaneous determination method for three sweeteners(sodium cyclamate,potassium acesulfame and sodium saccharin) and two preservatives(potassium sorbate and sodium benzoate) in food was established.Samples were directly diluted or extracted with water,followed by clean-up on Cleanert C18 column for removing organic impurities.The chromatographic separation of these additives was carried out on low hydrophobic IonPac AS17-C anion-exchange column using KOH solution as eluent by a two-step isocratic elutio... |
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| Keywords: | sweeteners preservative ion chromatography food quality analysis |
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