• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Supramolecular solvent microextraction of gold prior to its determination by microsample injection system coupled with flame atomic absorption spectrometry
【24h】

Supramolecular solvent microextraction of gold prior to its determination by microsample injection system coupled with flame atomic absorption spectrometry

机译：通过微量样品进样系统-火焰原子吸收光谱法测定金之前的超分子溶剂微萃取金

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

A supramolecular solvent based liquid-liquid microextraction (SsLLME) system for gold was developed prior to its determination by a microsample injection system coupled with flame atomic absorption spectrometric (MS-FAAS). 1,3,4-Thiadiazole-2,5-dithiol was used as a complexing agent to obtain a hydrophobic complex. The analytical factors affecting the microextraction efficiency, such as the pH, type and volume of supramolecular solvent, amount of complexing agent, ultrasonication and centrifuge time, and sample volume, were investigated. The limit of detection (LOD), enhancement factor (EF) and relative standard deviation (RSD) of the method were 1.5 mu g l(-1), 51 and 4.2%, respectively. The accuracy of the method was checked by the analysis of CDN-GS-3D Gold Ore certified reference material and addition-recovery tests. The method was successfully applied for the determination of gold in environmental samples.
机译：开发了一种基于超分子溶剂的液-液微萃取（SsLLME）黄金系统，然后通过微量样品注射系统与火焰原子吸收光谱法（MS-FAAS）进行测定。将1,3,4-噻二唑-2,5-二硫醇用作络合剂以获得疏水性络合物。研究了影响微萃取效率的分析因素，例如pH，超分子溶剂的类型和体积，络合剂的用量，超声和离心时间以及样品量。该方法的检出限（LOD），增强因子（EF）和相对标准偏差（RSD）分别为1.5μg l（-1），51和4.2％。该方法的准确性通过对CDN-GS-3D金矿石认证的参考材料进行分析并进行了添加回收率测试。该方法已成功应用于环境样品中金的测定。

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