在线客服: 点击这里给我发消息  新用户使用步骤:会员注册→充值→重新登入→进入资源
标题:A solid phase extraction method for isolating HF-extractable soil organic matter for NMR analysis
时间:2019-09-11 17:03:24
DOI:10.1016/j.orggeochem.2017.04.012
作者:Jamie Warren;Susan Ziegler
出版源: 《Organic Geochemistry》 ,2017 ,111 :S0146638016303904
摘要:Cross polarization magic angle spinning 13 C nuclear magnetic resonance (CP-MAS 13 C-NMR) analysis of soil is an important technique for understanding soil organic carbon (SOC) source, cycling and fate. The low carbon concentration in, a...
大小:558 kb
下载: 点击下载
预览:

浏览器不支持嵌入PDF阅读,打开新页面在线阅读

目录:
  • A solid phase extraction method for isolating HF-extractable soil organic matter for NMR analysis
    • 1 Introduction
    • 2 Material and methods
      • 2.1 Soils
      • 2.2 Acid demineralization
      • 2.3 SPE sample preparation
      • 2.4 Elemental analysis
      • 2.5 TOC analysis
      • 2.6 Solid state CP-MAS 13C-NMR spectroscopy
    • 3 Results and discussion
      • 3.1 C recovery and C/N of HF-insoluble SOM
      • 3.2 Significant recovery of HF-extractable carbon upon acid demineralization
      • 3.3 SPE cleanup of HF extractable fraction leads to quality NMR analysis
      • 3.4 Chemically distinct components revealed in HFextr-SPE fraction
      • 3.5 Removal of matrix effects enables new insight into SOC composition
    • Acknowledgments
    • Appendix A Supplementary material
    • References

本页内容由网络收集而来,版权归原创者所有,如有侵权请及时联系