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首页> 外文期刊>Electroanalysis >Electrochemical studies of ochratoxin a mycotoxin at gold electrodes modified with cysteamine self-assembled monolayers. Its ultrasensitive quantification in red wine samples
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Electrochemical studies of ochratoxin a mycotoxin at gold electrodes modified with cysteamine self-assembled monolayers. Its ultrasensitive quantification in red wine samples

机译：用半胱胺自组装单层修饰的金电极上的ra曲霉毒素（一种真菌毒素）的电化学研究。红酒样品中的超灵敏定量

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摘要

The quantification of ochratoxin A is studied at cysteamine self-assembled monolayer modified gold electrodes in red wine samples by square wave voltammetry. Detection and quantification limits of 0.004μg L-1 and 0.012μg L-1, respectively, were determined. The recovery percentages were in the range from 146% to 94.0% at spiking levels ranging from 0.02 to 5μg L-1. The variation coefficients for within-laboratory repeatability varied from 31.4 to 11.5% for spiked level from 0.02 to 2.0μg L-1. The developed electrochemical method is efficient, reproducible, and ultrasensitive for the quantification of OTA in red wine samples.
机译：通过方波伏安法研究了红酒样品中半胱胺自组装单层修饰金电极上曲霉毒素A的定量。测定的检测限和定量限分别为0.004μgL-1和0.012μgL-1。在0.02至5μgL-1的加标水平下，回收率在146％至94.0％的范围内。实验室内重复性的变异系数从0.02到2.0μgL-1的加标水平在31.4到11.5％之间变化。所开发的电化学方法对于红酒样品中OTA的定量分析是高效，可重现和超灵敏的。

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