| 分光光度法测定水中微量氟的研究 |
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| 引用本文： | 王建华,何荣桓,韩成利,焦庆祝.分光光度法测定水中微量氟的研究[J].高师理科学刊,1991(2). |
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| 作者姓名： | 王建华 何荣桓 韩成利 焦庆祝 |
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| 作者单位： | 烟台师院
(王建华，何荣桓)，齐齐哈尔师范学院化学系
(韩成利)，齐齐哈尔师范学院化学系(焦庆祝) |
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| 摘 要： | 本文利用F~-对Al~+—儿茶酚紫显色反应的抑制作用,提出了一种分光光度法测定微量氟的方法,可测定0～0.5μg/mL范围内的氟离子。Al~(3+)—儿茶酚紫络合物的摩尔吸光系数为ε_(620)=1.0×10~4,本方法的灵敏度为S=0.038μg/ml(F~-)。用此法测定了自来水中的微量氟离子,得到了满意的结果。
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| 关 键 词： | 分光光度法 氟 微量分析 |
Study on Spectrophotometric Determination of Trace Fluorine in Water |
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| Wang Jianhua He Ronghuan Han Chengli Jiao Qingzhu.Study on Spectrophotometric Determination of Trace Fluorine in Water[J].Journal of Science of Teachers＇College and University,1991(2). |
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| Authors: | Wang Jianhua He Ronghuan Han Chengli Jiao Qingzhu |
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| Institution: | Wang Jianhua He Ronghuan Han Chengli Jiao Qingzhu
(Yantai Teachers College)
(Department of Chemistry) |
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| Abstract: | A method for determination of trace Fluorine has been established based on the inhibitory effect of Fluoride ion on the reaction of A13+-Catechol Violet systems. The calibration graph is linear for 0-0.5μg (F-)/mL,and the molar absorptivity of A13+-PV complex is 1.0×104 at=620nm, the sensativity is 0.038μg (F-) /mL. The method has been used for determination of trace Fluorine in tap water, and the results are satisfactory. |
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| Keywords: | Spectrophotometry Fluorine Trace analysis |
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