• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Ultrasensitive determination of bisphenol A in water by inhibition of copper nanoclusters-enhanced chemiluminescence from the luminol-KMnO4 system
【24h】

Ultrasensitive determination of bisphenol A in water by inhibition of copper nanoclusters-enhanced chemiluminescence from the luminol-KMnO4 system

机译：抑制铜纳米团簇增强鲁米诺-KMnO4体系化学发光法测定水中双酚A

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the present work, a highly sensitive chemiluminescence (CL) system for determination of trace bisphenol A (BPA) was established. The method was based on the inhibitory effect of luminol CL by BPA on the Cu NCs-enhanced luminol-KMnO4 CL system for the first time. Water-soluble Cu NCs capped with BSA were synthesized. Under the optimized conditions, the inhibited CL intensity was proportional to the concentration of BPA ranging from 1.0 x 10(-9) to 1.0 x 10(-5) mol L-1, with a detection limit (3 sigma) of 1.2 x 10(-10) mol L-1. It indicated that the concentration level is lower by almost 1-3 orders of magnitude compared with alternatives. The relative standard deviation (RSD) of the method was 1.7% with 9 repeated measurements of 1.0 x 10(-6) mol L-1 BPA. The proposed method has also been applied to determine BPA in water samples with good accuracy and precision. The CL spectra, UV-visible spectroscopy and radical scavengers were conducted to explore the possible mechanism.
机译：在本工作中，建立了用于测定痕量双酚A（BPA）的高灵敏度化学发光（CL）系统。该方法首次基于双酚A的鲁米诺CL对Cu NCs增强的鲁米诺-KMnO4 CL系统的抑制作用。合成了用BSA封端的水溶性Cu NCs。在最佳条件下，抑制的CL强度与BPA的浓度成正比，范围从1.0 x 10（-9）到1.0 x 10（-5）mol L-1，检测极限（3 sigma）为1.2 x 10 （-10）mol L-1。这表明与替代品相比，浓度水平降低了近1-3个数量级。该方法的相对标准偏差（RSD）为1.7％，经过9次重复测量，得出1.0 x 10（-6）mol L-1 BPA。所提出的方法也已用于测定水样中的双酚A，具有良好的准确性和精密度。进行了CL光谱，紫外可见光谱和自由基清除剂的研究，以探讨可能的机理。

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