【作者】 武丽琴； 王伟； 许雪琴； 徐两军； 付凤富；

【Author】 WU Li-qin~1 WANG Wei~2 XU Xue-qin~3 XU Liang-jun~4 FU Feng-fu~* (Key Lab of Analysis and Detection Technique for Food Safety of Ministry of Education;Department of Chemistry,Fuzhou University,Fujian 350002)

【机构】 食品安全分析与检测技术(福州大学)教育部重点实验室福州大学化学化工学院；

【摘要】 用带有弹簧的活塞圆筒来固定工作电极,使其与芯片出口端对准,解决了重现性的问题;用螺旋测微器来调节工作电极与芯片出口端的距离,进而研究距离对样品5-羟色氨酸峰高的影响。更多还原

【Abstract】 A novel microchip system equipped with a end-column amperometric detector and a special device which controls the position of working electrode precisely have been developed in this study to aid in studying the relationship between electrode distance and performance of microchip.Although a shorter electrode distance offers higher sensitivity under a certain separation voltage,our results showed that a longer electrode distance led to a higher critical voltage and higher separation voltage offers a higher sensitivity and a sharp peak for analyte.更多还原