| 用电化学预处理玻碳电极直接测定痕量间羟胺 |
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| 引用本文： | 王元红,顾海鹰.用电化学预处理玻碳电极直接测定痕量间羟胺[J].淮阴师范学院学报(自然科学版),2007,6(3):229-232. |
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| 作者姓名： | 王元红 顾海鹰 |
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| 作者单位： | 1. 南通大学,公共卫生学院,江苏,南通,226007
2. 南通大学,公共卫生学院,江苏,南通,226007;南通大学,生命分析化学研究所,江苏,南通,226007 |
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| 摘 要： | 采用一种新型的电化学预处理玻碳电极的方法,经高电位阳极氧化(pH 6.0 PBS)处理后,再于-1.5~+1.6 V范围循环扫描,预处理玻碳电极能较好提高间羟胺的电化学响应.间羟胺在PGCE上的氧化峰电流与间羟胺的量成正比,其线性范围为3.6×10-8~3.0×10-3mol/L,检测限为1.0×10-8mol/L(S/N=3,富集时间100 s).间羟胺在电极表面的反应为不可逆的吸附过程,电子转移数目为1,质子数为1.多巴胺,肾上腺素、去甲肾上腺素和抗坏血酸等不干扰间羟胺的测定.该法可用于注射药剂中间羟胺的直接测定.
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| 关 键 词： | 电化学 电化学预处理玻碳电极(PGCE) 痕量 间羟胺(MR) |
| 文章编号： | 1671-6876（2007）03-0229-04 |
| 修稿时间： | 2007-05-20 |
Electrochemical Behavior of Metaraminol on A Novel Electrochemically Pretreated Glassy Carbon Electrode and its Determination |
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| WANG Yuan-hong,GU Hai-ying.Electrochemical Behavior of Metaraminol on A Novel Electrochemically Pretreated Glassy Carbon Electrode and its Determination[J].Journal of Huaiyin Teachers College(Natrual Science Edition),2007,6(3):229-232. |
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| Authors: | WANG Yuan-hong GU Hai-ying |
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| Institution: | School of Public Health, Nantong University, Nantong Jiangsu 226007, China; Institute of Analytical Chemistry for Life Science, Nantong University, Nantong Jiangsu 226007, China |
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| Abstract: | The PGCE shows good activity in improving the electrochemical response of metaraminol(MR).The oxidation peak currents are liner with the concentration of MR from 3.6×10-8 to 3.0×10-3 mol/L and the detection limit is as low as 1.0×10-8.The electrode reaction of MR on PGCE is an irreversible adsorption process in which the number of electron transfer is 1 and the proton number associated with the electrode reaction is 2.Dopamine,Epinephrine,Noradrenaline and Ascorbic acid don't interfere with the determination of MR. |
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| Keywords: | glass carbon electrode(GCE) electrochemically pretreated glassy carbon electrode(PGCE) trace determination metaraminol |
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