Titlebook: Methods in Lignin Chemistry; Stephen Y. Lin,Carlton W. Dence Book 1992 Springer-Verlag Berlin Heidelberg 1992 Holz.Lignin.Papier.paper.woo

植物茂盛

Commission

Cross Polarization/Magic Angle Spinning Nuclear Magnetic Resonance (CP/MAS NMR) Spectroscopysolution improved sufficiently to reveal detailed structural information about solid lignin (Bartuska et al. 1980). The number of research groups using the technique then increased rapidly as commercial CP/MAS NMR equipment became available and wood scientists began to recognize the advantages of being able to characterize lignin in situ.

sphincter

Springer Series in Wood Sciencehttp://image.papertrans.cn/m/image/632302.jpg

antedate

Fourier Transform Infrared SpectroscopySince the early 1950s, IR spectroscopy has been a routine analytical tool for lignin chemists. In the past, spectra were recorded using the so-called dispersive technique, i.e., with grating-type or prism instruments. In the last decade, Fourier transform infrared (FTIR) spectrometers have become increasingly available for routine laboratory work.

記憶法

Frequency-Range

Glaci冰

Frequency-Range

978-3-642-74067-1Springer-Verlag Berlin Heidelberg 1992

聽寫

Methods in Lignin Chemistry978-3-642-74065-7Series ISSN 1431-8563

GRIPE