| 铜纳米粒子修饰碳糊电极测定氨基酸 |
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| 引用本文： | 张幸儿,胡效亚.铜纳米粒子修饰碳糊电极测定氨基酸[J].扬州大学学报(自然科学版),2005,8(2):16-20. |
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| 作者姓名： | 张幸儿 胡效亚 |
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| 作者单位： | 扬州大学,化学化工学院,江苏,扬州,225002 |
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| 基金项目： | 国家自然科学基金资助项目(20175023,20375034) |
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| 摘 要： | 采用铜纳米粒子(平均粒径d≈50nm)修饰的碳糊电极,实现了电化学方法在近中性(pH=8磷酸缓冲溶液)条件下对甘氨酸等15种氨基酸的定量测定,测定的线性范围(甘氨酸)为2.5×1-05~7.4×1-04mol.L-1,最低检测下限(甘氨酸)为2.5×1-06mol.L-1(S/σ>3).
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| 关 键 词： | 铜纳米粒子 碳糊电极 甘氨酸 氨基酸 |
| 文章编号： | 1007-824X(2005)02-0016-05 |
Electrochemical determination of amino acid with carbon paste electrode modified by copper nanoparticles |
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| ZHANG Xing-er,HU Xiao-ya.Electrochemical determination of amino acid with carbon paste electrode modified by copper nanoparticles[J].Journal of Yangzhou University(Natural Science Edition),2005,8(2):16-20. |
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| Authors: | ZHANG Xing-er HU Xiao-ya |
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| Institution: | ZHANG Xing-er,HU Xiao-ya~* |
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| Abstract: | With carbon paste electrode modified by copper nanoparticles (average diameter of nanoparticles d50 nm), direct electrochemical detection of glycine is firstly achieved in approximately neutral solution (pH=8.0 phosphate buffer solution). Fifteen amino acids (including glycine) are quantitatively detected and the linear range of detection (glycine) is 2.510~(-5)7.410~(-4) molL~(-1), and the detection limit (glycine) is 2.510~(-6) molL~(-1) (S/>3). |
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| Keywords: | copper nanoparticles carbon paste electrode glycine amino acids |
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