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Electrochemical Sensing of Catecholamines at the Water/ 1,6-Dichlorohexane Interface

机译:水/ 1,6-二氯己烷界面上邻苯二酚胺的电化学传感

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摘要

In this work, the analytical use of facilitated ion transfer of catecholamines by dibenzo-18-crown-6 was investigated at the water/1,6-dichlorohexane interface using electrochemical methods (cyclic and square wave voltammetry). The experimental conditions for the analytical determination of noradrenaline and dopamine were established and detection limits of 1.7 and 0.35 μM were obtained, respectively. The effect of excess ascorbic acid on the transfer and detection of the two catecholamines was investigated. The selectivity coefficients obtained for dopamine and noradrenaline in the presence of ascorbic acid were 3.5×10~(-4) and 2.5×10~(-3), respectively.
机译:在这项工作中,使用电化学方法(循环和方波伏安法)在水/ 1,6-二氯己烷界面上研究了二苯并18-冠6促进儿茶酚胺类离子转移的分析用途。建立了测定去甲肾上腺素和多巴胺的实验条件,检出限分别为1.7和0.35μM。研究了过量抗坏血酸对两种儿茶酚胺的转移和检测的影响。在抗坏血酸存在下,对多巴胺和去甲肾上腺素的选择系数分别为3.5×10〜(-4)和2.5×10〜(-3)。

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