Chinese Journal of Magnetic Resonance ›› 1989, Vol. 6 ›› Issue (2): 193-200.

Previous Articles     Next Articles

13C-NMR STUDY OF HUMIC ACID SOLUTION FROM SOIL

Hau Shiying, Dou Sen, Zhu Tao   

  1. Institute of theoretical chemistry Jilin university, department of soil science and agricultural chemistry, Shenyang agricutural university
  • Received:1988-01-19 Revised:1988-05-13 Published:1989-06-05 Online:2018-01-22

Abstract: We carried out a 13C NMR study of humic acid solution from Brown forest soil and Meadow soil under different conditions. The results have shown that the best signal-to-noise ratios in a given time can be obtained by using a large number of transients spaced at short intervals, rather than a smaller number spaced at longer intervals. This is adaptable to semi-quantitative determination of carbon types.

Key words: 13C-NMR, Soil, Humic acid