| 盐酸超声-氟离子选择电极法测定复合肥中氟含量 |
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| 引用本文： | 徐芝亮,吴海燕,刘永林.盐酸超声-氟离子选择电极法测定复合肥中氟含量[J].中国无机分析化学,2015,5(1):62-65. |
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| 作者姓名： | 徐芝亮 吴海燕 刘永林 |
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| 作者单位： | 江西省分析测试研究所，南昌330029;江西省农业科学院，南昌330200;江西省分析测试研究所，南昌330029 |
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| 摘 要： | 为快捷有效地测定复合肥中氟的含量,采用盐酸浸取过夜、盐酸超声、碱熔、纯水煮沸四种方法提取复合肥中的氟离子,用氟离子选择电极进行测定,全程加标回收;结果发现盐酸超声提取法测得值与碱熔提取法测定值非常接近,并且加标回收率为98.4%~104.2%,相对标准偏差为1.9%;则用盐酸超声提取法测定复合肥中的氟含量方法可靠,方便快速,能够满足复合肥中氟含量的测试要求。
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| 关 键 词： | 氟离子 氟离子选择电极 盐酸浸取 盐酸超声 碱熔 纯水煮沸 |
| 收稿时间： | 8/4/2014 12:00:00 AM |
| 修稿时间： | 2014/9/16 0:00:00 |
Determination of Fluoride in Compound Fertilizers by Ultrasonic Ion Selective Electrode Method |
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| XU Zhiliang,WU Haiyan and LIU Yonglin.Determination of Fluoride in Compound Fertilizers by Ultrasonic Ion Selective Electrode Method[J].Chinese Journal of Inorganic Analytical Chemistry,2015,5(1):62-65. |
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| Authors: | XU Zhiliang WU Haiyan and LIU Yonglin |
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| Institution: | Jiangxi Institute of analysis test,Nanchang,Jiangxi 330029,China;Jiangxi Academy of Agricultural Sciences, Nanchang,Jiangxi 330200,China;Jiangxi Institute of analysis test,Nanchang,Jiangxi 330029,China |
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| Abstract: | In order to determinate fluorine in compound fertilizer effectively, four extraction methods including HCl leaching extraction overnight, ultrasonic solvent extraction, alkaline fusion digestion, pure water boiling digestion were studied. It can be included that similar results can be achieved through both ultrasonic solvent extractionby HCl and alkali fusion digestion method. The recovery is 98.4%~104.2% with 1.9% RSD. Therefore, ultrasonic solvent extraction method is reliable, convenient and fast, and it can meet the requirements of the determination of fluorine content in compound fertilizer. |
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| Keywords: | fluoride Fluoride ion selective electrode hydrochloric acid leaching extraction alkali fusion digestion water boiling digestion |
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