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Aliphatic components of forest soil organic matter as determined by solid-state 13C NMR and analytical pyrolysis

✍ Scribed by Ingrid Kögel-Knabner; Patrick G. Hatcher; Erik W. Tegelaar; Jan W. de Leeuw


Book ID
119031670
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
836 KB
Volume
113
Category
Article
ISSN
0048-9697

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Background Signal in Solid State 13C NMR
✍ Ronald J. Smernik; J.Malcolm Oades 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 112 KB

13 C background signal, obtained for an empty rotor, was shown by spin counting experiments to be equivalent to 1 mg of observable carbon for cross-polarization (CP) spectra and 69 mg of observable C for Bloch decay (BD) spectra. The BD background was mainly due to Kel-F in the stator, with minimal