首页> 外文期刊>Chromatographia >Coupling of dynamic headspace sampling and solid phase microextraction
【24h】

Coupling of dynamic headspace sampling and solid phase microextraction

机译:动态顶空进样与固相微萃取的耦合

获取原文
获取原文并翻译 | 示例
           

摘要

A simple lob-made apparatus allowing the use of a SPME fiber as sorptive device for isolation of analytes from varied samples using dynamic headspace sampling (DHS) is presented here. The principal parameters for the operation of this device - the extraction time and the flow of purging gas - were studied using aqueous test solutions of volatile and semi-volatile analytes. Compared to conventional HS-SPME, DHS-SPME provided a substantial reduction in the extraction time with linearity, accuracy and precision comparable to the conventional approach. For a complex matrix such as mango pulp, the extraction efficiency of volatiles using The DHS-SPME combination was up to six times higher than that of conventional HS-SPME.
机译:本文介绍了一种简单的叶状设备,该设备允许使用SPME纤维作为吸附设备,使用动态顶空进样(DHS)从各种样品中分离出分析物。使用挥发性和半挥发性分析物的水性测试溶液研究了该设备运行的主要参数-提取时间和吹扫气体流量。与传统的HS-SPME相比,DHS-SPME大大减少了提取时间,其线性,准确性和精密度可与传统方法相比。对于复杂的基质(例如芒果浆),使用DHS-SPME组合物提取挥发物的效率比传统HS-SPME高达六倍。

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