首页> 外文会议>International Meeting of the International Humic Substances Society >Comparison of ~(13)C NMR Spectra of Fulvic Acids from Neighboring Two Clear Water Lakes in Japan
【24h】

Comparison of ~(13)C NMR Spectra of Fulvic Acids from Neighboring Two Clear Water Lakes in Japan

机译:日本邻近两种透明水湖中富乙酸的〜(13)C NMR光谱的比较

获取原文

摘要

Most of rivers and lakes in Japan are clear waters that exhibit low concentrations of fulvic acids(FAs)(1).FAs complex or sorb major cations,trace metals,trace anions,and hydrophobic pollutants,and thereby change both bioavailability and geochemical cycling of these substances(2).Therefore,it is important to reveal chemical properties of FAs for understanding the above functions even if their concentrations are low.One of the most promising techniques for analyzing chemical properties of FAs is ~(13)C NMR spectroscopy(3).There are however,few studies on ~(13)C NMR spectral properties of FAs in clear waters because it is difficult to collect the sufficient amounts of FA samples from clear waters.Recently,we made up a large-scale preparative isolation apparatus of aquatic FAs(4).
机译:日本的大多数河流和湖泊都是清澈的水域,其表现出低浓度的富核酸(FAS)(1).FAS复合物或SORB主要阳离子,痕量金属,痕量阴离子和疏水性污染物,从而改变生物利用度和地球化学循环这些物质(2)所以,即使它们的浓度低,也很重要的是揭示用于理解上述功能的FA的化学性质,即使它们的浓度为低。用于分析FAS的化学性质的最有前途的技术是〜(13)C NMR光谱( 3)。然而,很少有关于透明水中Fas的〜(13)C NMR光谱特性的研究,因为难以收集透明水域的足够量的FA样本。即,我们弥补了大规模的制备分离水生Fas(4)的装置。

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