首页> 外文期刊>Journal of Analytical & Applied Pyrolysis >Determination of nonylphenol and nonylphenol ethoxylates in pulp samples by Py-GC/MS
【24h】

Determination of nonylphenol and nonylphenol ethoxylates in pulp samples by Py-GC/MS

机译:Py-GC / MS测定纸浆样品中的壬基酚和壬基酚乙氧基化物

获取原文
获取原文并翻译 | 示例
           

摘要

We have developed a method for ascertaining the presence of nonylphenol (NP) and nonylphenol ethoxylates (NPEs) in pulp samples at very low levels. The method entails pre-concentration of the compounds and their detection by Py-GC/MS. Solvent extraction of the compounds from pulps with acetone gives better recoveries than desorption of the compounds from the pulps by gas stripping. The detection limit for NPEs with our technique is as low as 0.003 ppm in pulp sheets.
机译:我们已经开发出一种方法来确定纸浆样品中壬基酚(NP)和壬基酚乙氧基化物(NPE)的含量非常低。该方法需要对化合物进行预浓缩并通过Py-GC / MS进行检测。用丙酮从纸浆中溶剂萃取化合物的回收率比通过气提从纸浆中解吸化合物要好。我们的技术对纸浆板中NPE的检出限低至0.003 ppm。

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