| HClO_4浸取-离子选择电极法测定龙眼芒果中氟化物 |
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| 引用本文： | 陈渊,谢祖芳,朱万仁,田金花,李珍惠.HClO_4浸取-离子选择电极法测定龙眼芒果中氟化物[J].环境科学与技术,2006,29(8):43-44. |
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| 作者姓名： | 陈渊 谢祖芳 朱万仁 田金花 李珍惠 |
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| 作者单位： | 广西玉林师范学院化学与生物系,玉林,537000 |
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| 基金项目： | 广西教育厅科研项目
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玉林师范学院校科研和教改项目 |
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| 摘 要： | 采用高氯酸对南方水果龙眼、芒果中的微量氟化物进行浸取,以柠檬酸钠-氯化钠-冰醋酸组成的总离子强度作缓冲剂(TISAB),控制溶液pH=5.5,用氟离子选择电极及标准曲线法测定了龙眼、芒果中微量氟。氟离子的加标回收率为96.0%～106.1%,测定的结果表明其相对标准偏差为1.80%～3.95%,结果令人满意。
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| 关 键 词： | 龙眼 芒果 氟离子选择电极 氟含量 |
| 文章编号： | 1003-6504(2006)08-0043-02 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006-05-15 |
Measuring Fluoride in Longan and Mango by HClO4 Digesting -Fluoride Ion Selective Electrode |
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| CHEN Yuan,XIE Zu-fang,ZHU Wan-ren,TIAN Jin-hua,LI Zhen-hui.Measuring Fluoride in Longan and Mango by HClO4 Digesting -Fluoride Ion Selective Electrode[J].Environmental Science and Technology,2006,29(8):43-44. |
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| Authors: | CHEN Yuan XIE Zu-fang ZHU Wan-ren TIAN Jin-hua LI Zhen-hui |
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| Abstract: | Trace fluoride ions in fruits of Longan and Mango were analysed with fluoride selective electrode and standard curve of trace fluoride ion. The trace fluoride solution were prepared by taking Longan and Mango separately to solutions of perchloric acid with buffer agents of sodium citrate, sodium chloride and glacial acetic acid with pH controlling to 5.5. Results showed that the monitoring curves were deviated 1.80~3.95% from standard curve and detectable rate of the marked fluoride ions were 96.0~106.1%. |
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| Keywords: | Longan Mango fluoride ion selective electrode fluoride content |
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