| 离子色谱法同时测定茶叶中多种阴离子 |
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| 引用本文： | 黄芳,吴晓霞,刘燕晓,郑甜甜.离子色谱法同时测定茶叶中多种阴离子[J].化学分析计量,2011,20(1):65-67. |
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| 作者姓名： | 黄芳 吴晓霞 刘燕晓 郑甜甜 |
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| 作者单位： | 南京晓庄学院生物化工与环境工程学院,南京,211171 |
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| 基金项目： | 江苏省大学生实践创新训练计划项目 |
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| 摘 要： | 研究了离子色谱法同时测定茶叶中F<'->、Cl<'->、NO<,2><'->、NO<'-><,3>、H<,2>PO<'-><,4>和SO<'2-><,4>6种无机阴离子含量的方法.茶叶样品中6种阴离子经95℃超声浸提20 min后,以浓度为1.92 mmol/L Na<,2>CO<,3>和1.80 mmol/L NaH...
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| 关 键 词： | 离子色谱法 茶叶 阴离子 |
SIMULTANEOUS ANALYSIS OF INORGANIC ANIONS IN TEA BY ION CHROMATOGRAPHY |
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| Huang Fang,Wu Xiaoxia,Liu Yanxiao,Zheng Tiantian.SIMULTANEOUS ANALYSIS OF INORGANIC ANIONS IN TEA BY ION CHROMATOGRAPHY[J].Chemical Analysis And Meterage,2011,20(1):65-67. |
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| Authors: | Huang Fang Wu Xiaoxia Liu Yanxiao Zheng Tiantian |
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| Institution: | Huang Fang,Wu Xiaoxia,Liu Yanxiao,Zheng Tiantian (School of Biochemical and Environmental Engineering,Nanjin Xiaozhuang University,Nanjing211171,China) |
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| Abstract: | Ion chromatography was applied to the determination of 6 inorganic anions F^- , Cl^- , NO2^- , NO3^-, H2PO4- and SO4^2- in tea. The 6 anions in the sample were extracted ultrasonically with water for 20 min, at 95℃. The extract passed through the anion exchange column and the ion chromatography separation was carried out by using 1.92 mmol /L Na2CO3 ＋ 1.80 mmol /L NaHCO3. It was found that the correlation coefficient of linear regression equations were more than 0.999, the recoveries of the method were between 94.40% - 111.8%. All relative standard deviations of areas were less than 5.0% （n = 9）. This method can be applied to the analysis of the tea samples with satisfactory results. |
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| Keywords: | ion chromatography tea anion |
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