以聚乙烯醇(PVA)膜CuO表面丝网印刷碳电极(SPCE)为受体的二嗪农传感器的研制

Anisa Resti, Ani Mulyasuryani, Diah Mardiana
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引用次数: 0

摘要

以聚乙烯醇(PVA-CuO)膜为受体,在丝网印刷碳电极(SPCE)表面制备了二嗪农传感器。所使用的膜由聚乙烯醇(PVA) 5% (w/v)、柠檬酸5% (w/v)、戊二醛4% (v/v)、重氮肼溶液40 ppm (v/v)和CuO 5% (w/v)组成。本研究确定了在0.01、0.02和0.03 (w/w)浓度下二嗪农的作用。CuO浓度分别为0.5和1 (w/w)。在pH为2 -5的布列顿-罗宾逊缓冲液中,对diazinon10 -12 - 10- 5m溶液的浓度范围进行了信号测量。此外,采用HCl pH 4、10-5 M KCl、ph3磷酸盐和磷酸盐-KCl ph3缓冲液研究了电解质类型的影响。Diazinon传感器的表征结果表明,在42 mV/ 10年的灵敏度最高,响应时间为180秒。
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The Development of Diazinon Sensors using Polyvinyl Alcohol (PVA) Membrane CuO on Surface Screen-Printed Carbon Electrode (SPCE) as a Receptor
The development of Diazinon sensor has been studied using polyvinyl alcohol (PVA-CuO membrane on the surface of the screen-printed carbon electrode (SPCE) as a receptor. The membrane used consisted of polyvinyl alcohol (PVA) 5% (w/v), citric acid 5% (w/v), glutaraldehyde 4% (v/v), Diazinon solution 40 ppm (v/v), and CuO 5% (w/v). This study established the effect of Diazinon at 0.01,0.02 and 0.03 (w/w). besides, the concentration of CuO was 0.5 and 1 (w/w). Signal measurements were carried out in the concentration range of the Diazinon 10-12 - 10-5 M solution in Britton-Robinson buffer at pH 2 - 5. Besides, the influence of the electrolyte type was studied using HCl pH 4, 10-5 M KCl, pH 3 phosphate and phosphate-KCl pH 3 buffers. The results of the Diazinon sensor characterization showed that the highest sensitivity was obtained at 42 mV/decade with a response time of 180 seconds.
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