000 00994 a2200277 4500
005 20250512112127.0
264 0 _c19731011
008 197310s 0 0 eng d
022 _a0090-0028
024 7 _a10.1038/newbio244158a0
_2doi
040 _aNLM
_beng
_cNLM
100 1 _aGoodman, B A
245 0 0 _aElectron paramagnetic resonance evidence that copper is complexed in humic acid by the nitrogen of porphyrin groups.
_h[electronic resource]
260 _bNature: New biology
_cAug 1973
300 _a158-9 p.
_bdigital
500 _aPublication Type: Journal Article
650 0 4 _aCopper
_xanalysis
650 0 4 _aHumic Substances
_xanalysis
650 0 4 _aMagnetic Resonance Spectroscopy
650 0 4 _aNitrogen
_xanalysis
650 0 4 _aPorphyrins
_xanalysis
650 0 4 _aSoil
_xanalysis
700 1 _aCheshire, M V
773 0 _tNature: New biology
_gvol. 244
_gno. 135
_gp. 158-9
856 4 0 _uhttps://doi.org/10.1038/newbio244158a0
_zAvailable from publisher's website
999 _c4520718
_d4520718