共 50 条
- [31] Structure of humic acids in zonal soils from 13C NMR data Eurasian Soil Science, 2011, 44 : 976 - 983
- [32] Comparison of decolorization by microorganisms of humic acids with different 13C NMR properties SOIL BIOLOGY & BIOCHEMISTRY, 2002, 34 (05): : 729 - 731
- [36] PREPARATION OF SOME CARBOXYLIC ACIDS-C-14(U) FROM AMINO ACIDS-C-14(U) JOURNAL OF LABELLED COMPOUNDS & RADIOPHARMACEUTICALS, 1982, 19 (08): : 899 - 903
- [39] C-13 HYPERFINE INTERACTIONS IN RADICALS FROM SOME CARBOXYLIC ACIDS JOURNAL OF CHEMICAL PHYSICS, 1971, 55 (10): : 5000 - +