| 用聚乙烯醇凝胶为基质的光导纤维铝传感器的研究 |
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| 引用本文： | 马望百,章竹君.用聚乙烯醇凝胶为基质的光导纤维铝传感器的研究[J].高等学校化学学报,1991,12(10):1304-1307. |
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| 作者姓名： | 马望百 章竹君 |
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| 作者单位： | 陕西师范大学化学系, 西安, 710062 |
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| 摘 要： | 本文将桑色素通过氰脲酰氯固定在聚乙烯醇上,以戊二醛作为交联剂,在光导纤维上制得对铝离子产生荧光响应的聚乙烯醇凝胶传感膜,这种光纤传感器对铝离子的响应时间在10s以内,在3×10-7～10-4mol/L铝浓度范围内有良好的线性关系,实验结果与理论式相吻合。
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| 关 键 词： | 光导纤维化学传感器 光极 铝 聚乙烯醇凝胶 |
| 收稿时间： | 1990-05-04 |
The Investigation of a Fiber Optical Aluminum Sensor Using Poly (Vinyl Alcohol) Gel as a Substrate |
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| Ma Wang-bai,Zhang Zhu-jun.The Investigation of a Fiber Optical Aluminum Sensor Using Poly (Vinyl Alcohol) Gel as a Substrate[J].Chemical Research In Chinese Universities,1991,12(10):1304-1307. |
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| Authors: | Ma Wang-bai Zhang Zhu-jun |
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| Institution: | Department of Chemistry, Shanxi Normal University, Xian, 710062 |
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| Abstract: | An optical sensor responding to Al(Ⅲ) was prepared by covalently coupling morin to poly (vinyl alcohol) via cyanuric chloride. The fluorescence was measured at 490 nm with excitation at 410 nm. The steady-state intensity is reached in 5-10 s, when aluminum ions is added to acetate buffer with pH4. 8. The calibration graph is rectilinear from 3×10-7mol/Lto 10-4mol/L. The detection limit is 2×10-7mol/L. The effects of pH, the amount of immobilized morin and various foreign ions have been studied. The method has been applied to the determination of Al in top water. The results are in good agreement with those obtained by AAS of Al determination. |
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| Keywords: | Fiber optical chemical sensor Optrode Aluminum Poly (vinyl alcohol) gel |
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