• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Electrochemical Science >Application of Sensitive Sensor Modified with MWNTs/Al2O3/poly-L-lysine Composite for 17β –estradiol Determination in Pregnant Woman Blood
【24h】

Application of Sensitive Sensor Modified with MWNTs/Al2O3/poly-L-lysine Composite for 17β –estradiol Determination in Pregnant Woman Blood

机译：用MWNT / Al 2 O 3 /聚-L-赖氨酸复合物进行敏感传感器的应用17β-雌二醇测定

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel disposable sensor modified with MWNTs/Al2O3/poly-L-lysine film was developed for detection of clinical 17β-estradiol (17β-E2) urine samples in this study. The electrochemical behavior of 17β-E2 was greatly increased due to the good electrocatalytic activity of MWNTs/Al2O3/poly-L- lysine nanocomposites. The optimum experimental conditions such as scan rate, pH, accumulation time were obtained, and the peak potentials of 17β-E2 was explored at about 530mV. The peak current of 17β-E2 measured by CV displayed the good linear property with the increasing of the concentrations. Under optimized conditions, the disposable sensor displayed excellent analytical performance with linear ranges of 17β-E2 from 0.5nM to 50nM. And a very low detection limit of 0.014 nM was attained. Furthermore, the MWNTs/Al2O3/poly-L-lysine SPE was used to the rapid and successful determination of the hormone in spiked synthetic and real clinical pregnant woman urine samples with wonderful selectivity and sensitivity.
机译：用MWNT / Al 2 O 3 /聚-L-赖氨酸膜改性的新型一次性传感器用于检测本研究中的临床17β-雌二醇（17β-E2）尿液样本。由于MWNT / Al 2 O 3 /聚-L-赖氨酸纳米复合材料的良好电催化活性，17β-E2的电化学行为大大增加。获得的最佳实验条件如扫描速率，pH，累积时间，17β-E2的峰电位在约530mV下探讨。通过CV测量的17β-E2的峰值电流显示出良好的线性性质随着浓度的增加而显示。在优化条件下，一次性传感器显示出优异的分析性能，线性范围为17β-E2，从0.5nm至50nm。达到了0.014nm的非常低的检测限。此外，MWNT / Al2O3 / Poly-L-赖氨酸SPE用于快速和成功地测定尖刺合成和真正的临床孕妇尿液中的激素，具有精彩的选择性和敏感性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号