Galletti G C, Bocchini P
Centro di Studio per la Conservazione dei Foraggi, Consiglio Nazionale delle Ricerche, Bologna, Italy.
Rapid Commun Mass Spectrom. 1995;9(9):815-26. doi: 10.1002/rcm.1290090920.
The use of pyrolysis/gas chromatography/mass spectrometry (PY/GC/MS) to determine the molecular composition of lignocellulose is reviewed and the technique illustrated with applications on some novel systems. Constituents and structural arrangement of lignocellulosic polymers in plant cell wall are briefly described. The basic principles of pyrolysis and the main advantages and disadvantages of PY/GC/MS are discussed. PY/GC/MS analyses of (a) paper industry effluents, (b) agricultural by-products subjected to biological processes of delignification and (c) recycled paper are presented as examples of the amount of information that PY/GC/MS can provide on lignin classification and monitoring of delignification treatments as well as on the fingerprinting of lignocellulosic materials. The ion trap detector mass spectra of 56 pyrolysis products of lignocellulose, including compounds of phenolic, furanic and pyranic nature, are shown.
综述了热解/气相色谱/质谱联用技术（PY/GC/MS）用于测定木质纤维素分子组成的情况，并通过在一些新型体系中的应用对该技术进行了说明。简要描述了植物细胞壁中木质纤维素聚合物的成分和结构排列。讨论了热解的基本原理以及PY/GC/MS的主要优缺点。给出了对（a）造纸工业废水、（b）经过生物脱木质素处理的农业副产品和（c）再生纸的PY/GC/MS分析，作为PY/GC/MS在木质素分类、脱木质素处理监测以及木质纤维素材料指纹识别方面所能提供信息量的示例。展示了木质纤维素56种热解产物的离子阱检测器质谱图，这些产物包括酚类、呋喃类和吡喃类化合物。
