• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of environmental analytical chemistry >Magnetic solid-phase extraction based on Fe_3O_4/graphene oxide nanoparticles for the determination of malachite green and crystal violet in environmental water samples by HPLC
【24h】

Magnetic solid-phase extraction based on Fe_3O_4/graphene oxide nanoparticles for the determination of malachite green and crystal violet in environmental water samples by HPLC

机译：基于Fe_3O_4 /氧化石墨烯纳米粒子的磁性固相萃取用于HPLC测定环境水样中的孔雀石绿和结晶紫

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

This work describes a magnetic Fe3O4/graphene oxide (GO)-based solid-phase extraction (MSPE) technique for high performance liquid chromatography (HPLC) detection of malachite green (MG) and crystal violet (CV) in environmental water samples. Fe3O4/ GO magnetic nanoparticles were synthesised by a chemical co-precipitation method and characterised by scanning electron micrograph, transmission electron microscope, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and surface area analyser. The prepared Fe3O4/GO magnetic nanoparticles were used as the adsorbents of MSPE for MG and CV. By coupling with HPLC, a sensitive and cost-effective method for simultaneous determination of MG and CV was developed. The important parameters including the amount of Fe3O4/GO, pH of the sample solution, extraction time, salt effect, the type and volume of desorption solvent were investigated in detail. Under optimised conditions, the calibration curves were linear in the concentration range of 0.5-200 g L-1, and the limits of detection were 0.091 and 0.12 g L-1 for MG and CV, respectively. Finally, the established MSPE-HPLC method was successfully applied to determine MG and CV in environmental water samples with the recoveries ranging from 91.5% to116.7%.
机译：这项工作描述了基于磁性Fe3O4 /氧化石墨烯（GO）的固相萃取（MSPE）技术，用于高效液相色谱（HPLC）检测环境水样品中的孔雀石绿（MG）和结晶紫（CV）。通过化学共沉淀法合成Fe3O4 / GO磁性纳米粒子，并通过扫描电子显微镜，透射电子显微镜，傅立叶变换红外光谱，X射线光电子能谱和表面积分析仪对其进行表征。制备的Fe3O4 / GO磁性纳米粒子用作MSPE对MG和CV的吸附剂。通过与HPLC结合，开发了同时测定MG和CV的灵敏且经济高效的方法。详细研究了Fe3O4 / GO的量，样品溶液的pH，萃取时间，盐效应，脱附溶剂的类型和体积等重要参数。在最佳条件下，校准曲线在0.5-200 g L-1的浓度范围内是线性的，对于MG和CV的检出限分别为0.091和0.12 g L-1。最终，建立的MSPE-HPLC方法成功地用于测定环境水样中的MG和CV，回收率在91.5％至116.7％之间。

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