| 电致化学发光抑制效应测定硫脲 |
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| 引用本文： | 安镜如 林建国. 电致化学发光抑制效应测定硫脲[J]. 高等学校化学学报, 1992, 13(5): 593-595 |
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| 作者姓名： | 安镜如 林建国 |
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| 作者单位： | 1. 福州大学化学系, 福州, 350002;2. 武汉产品质量监督检验所 |
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| 摘 要： | 在自制的ECL-1型电致化学发光仪上,用电化学发光法研究了硫脲.发现硫脲对新的酰肼类试剂6-[2,4-二羟基苯基偶氮]-2,3-二氢-1,4-酞嗪二酮(DHDHD)在Na2CO3-NaHCO3-KCl体系中的电化学发光有较强的抑制效应.在0.05～5mg/L范围内,硫脲浓度的对数与发光强度有良好的线性关系.0.2mg/L的硫脲,相对标准偏差为2%.并探讨了发光机理.
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| 关 键 词： | 电致化学发光 流脲 抑制效应 |
| 收稿时间： | 1991-04-06 |
Determination of Thiourea with Inhibition Action of Electrochemiluminescence |
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| AN Jing-ru,LIN Jian-guo. Determination of Thiourea with Inhibition Action of Electrochemiluminescence[J]. Chemical Research In Chinese Universities, 1992, 13(5): 593-595 |
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| Authors: | AN Jing-ru LIN Jian-guo |
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| Affiliation: | Department of Chemistry, Fuzhou University, Fuzhou, 350002 |
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| Abstract: | The electrochemiluminescence of thiourea was studied in medium of Na2CO3-NaHCO3-KCl-DHDHD(pH= 9. 8) by a self-made apparatus. Thiourea exhibits an evident inhibition action for electrochemiluminescence of DHDHD. It can be used for the determination of microamounts of thiourea. A linear relationship between the concentration and intensity of light emitted is obtained in the range of 0. 005-5 ppm for thiourea. The relative standard deviation is 2%. The mechanism of the electrochemiluminescence of thiourea is also discussed. |
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| Keywords: | Electrochemiluminescence Thiourea Inhibition action |
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