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Investigation of humic acid N with X-ray photoelectron spectroscopy: Effect of acid hydrolysis and comparison with 15N cross polarization/magic angle spinning nuclear magnetic resonance spectroscopy

✍ Scribed by Tomonori Abe; Nagamitu Maie; Akira Watanabe


Book ID
116807712
Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
314 KB
Volume
36
Category
Article
ISSN
0146-6380

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## Abstract This paper presents the high‐resolution ^13^C and ^15^N cross‐polarization magic angle spinning (CP/MAS) NMR spectra of three natural melanin solids: __Sepia officinalis__ melanin, __Sepia officinalis__ melanin free acid (MFA) and __Human hair__ melanin. The functional group characteriz