THE PREPARATION AND EVALUATION OF ULTRAMICRO-SENSOR MODIFIED POLYMETHACRYLOYLACETC

超微传感器改性聚甲基丙烯酰乙酸的制备及评价

• 批准号: 09640730
• 负责人: MOTONAKA Junko
• 金额: $ 1.73万
• 依托单位: The University of Tokushima
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09640730/
• 关键词: Ultramicro-electrode; Determination of metal ions; Polymethacryloylacetone; 銅-鉛イオン混合物定量; 微量金属測定; 鉄; 銅; 鉛; モリブデン

A porous ultramicro-electrode with immobilized polymethacryloylacetone(PMAA) was developed for measuring metal ions. A porous carbon material was packed into the tip of the platinum micro-electrode with a cavity at the top. The porous ultramicro-electrode was dipped in the coating tetrahydrofuran solution with PMAA and di-2-ethylhexyl phthalate and dried overnight at room temperature. The relationship between the metal ion concentrations and oxidation peak current were examined under the optimum conditions. A linear relationship was obtained in the range of 0.01 mM - 1 mM iron ion. The calibration curve could be represented by the equation Y = 2.42X -0.414, where Y is the oxidation peak current in nA and X is the iron ion concentration in mM.The regression coefficient was 0.999. By use of this electrode, Cu(II), Pb(II), and Mo(V) ions could also be deternined. The simultaneous determination was possible only for the mixture of Cu(II) and Pb(II) ions because the optimal conditions for these ions were similar to each other. The electrode was stored in a pH 6.0 phosphate buffer solution at room temperature. Analytical values determined with the modified electrode was constant for at least 3 months

开发了具有固定多甲基丙烯酰丙酮（PMAA）的多孔超大电极，用于测量金属离子。将多孔的碳材料堆积在铂微电极的尖端，顶部有空腔。用PMAA和DI-2-乙基己酸酯浸入涂层四氢呋喃溶液中，将多孔的超大电极浸入涂层中，并在室温下干燥过夜。在最佳条件下检查了金属离子浓度与氧化峰电流之间的关系。在0.01 mm -1 mm铁离子的范围内获得了线性关系。校准曲线可以用公式y = 2.42x -0.414表示，其中y是Na和X中的氧化峰值电流是MM中的铁离子浓度，回归系数为0.999。通过使用此电极，也可以降低Cu（ii），Pb（ii）和Mo（v）离子。仅对于Cu（II）和Pb（II）离子的混合物，可以同时测定，因为这些离子的最佳条件彼此相似。电极在室温下存储在pH 6.0磷酸盐缓冲液中。用修饰电极确定的分析值至少恒定3个月

项目成果

Junko Motonaka: "Utitization of Diketone Polymer Membrane for Micro-Senser" Reports on Progress in Polymer Physics in Japan. 40. 427-428 (1997)

Junko Motonaka：“二酮聚合物膜用于微传感器的利用”报道日本聚合物物理学的进展。

Junko Motomaka: "Utilitzation of Diketone Polymer Membiane for Micro-sencer" Reports on Progress in Polymerphysics in Japan. 40. 427-428 (1997)

Junko Motomaka：“二酮聚合物膜用于微传感器的利用”报告日本高分子物理学进展。

Junko Motonaka: "Utilization of Diketone Polymer Membrane for Micro-sensor" Reports on Progress in Polymer Physics in Japan. Vol.40. 427-428 (1997)

Junko Motonaka：《二酮聚合物膜用于微传感器》报道日本高分子物理进展。