Polyaniline/gamma aluminum oxide (PAn/γ-Al₂O₃) nanocomposites were synthesized via in situ electropolymerization on gold electrodes and modified electrodes (Au/PAn/γ-Al₂O₃) were used for the detection of vitamin E (VE). The electrochemical and electropolymerization performance of aniline in the presence of γ-Al₂O₃ nanoparticles improved dramatically. The kinetic results indicate that the polymerization growth rate of PAn in the presence of nanoparticles catalyst on Au electrode is fast. The resulting electrode exhibited excellent performance with regard to detecting VE. The mechanisms of electropolymerization of aniline in presence of γ-Al₂O₃ nanoparticle catalyst and mechanism of redox behavior of VE are investigated. The limit of detection (LOD) was observed to be around 0.06 μM. The tolerance limits of some important interfering species with VE were studied.

聚苯胺/伽马氧化铝（PAN /γ-Al系₂ ö ₃）纳米复合材料通过原位电解合成上的金电极和修饰电极（金/聚苯胺/γ-Al系₂ ö ₃）用于检测的维生素E（VE ）。苯胺在γ-Al的存在下，电化学和电聚合性能_2个ö ₃纳米颗粒显着改善。动力学结果表明，在Au电极上存在纳米催化剂的情况下，PAn的聚合生长速度快。所得电极在检测VE方面表现出优异的性能。在存在苯胺的电化学聚合的机制的γ-Al ₂ ö ₃研究了纳米粒子催化剂和VE的氧化还原行为机理。观察到的检出限（LOD）约为0.06μM。研究了一些重要干扰物种对VE的耐受极限。