Qi Yulin, Hempelmann Rolf, Volmer Dietrich A
Institute of Bioanalytical Chemistry, Saarland University, 66123, Saarbrücken, Germany.
Institute of Physical Chemistry, Saarland University, Saarbrücken, Germany.
Anal Bioanal Chem. 2016 Nov;408(28):8203-8210. doi: 10.1007/s00216-016-9928-7. Epub 2016 Sep 17.
Lignin is the second most abundant natural polymer and a promising alternative energy source for conventional fossil fuels. In this study, we investigated transformations of lignin compounds under artificial UV light conditions at the molecular level. Such light-induced changes of composition profiles in nature after sun exposure have been studied for crude oil in the petroleomics field. We applied a similar high resolution mass spectrometry experimental strategy to lignin and demonstrated various data processing methods to reveal the characteristic differences between the extremely complex data sets of two sample sets, one native control before and one sample after photo-irradiation, using Fourier transform ion cyclotron resonance-mass spectrometry. Graphical abstract Kendrick mass defect versus nominal Kendrick mass for mass spectra of a control and UV-oxidized lignin sample.
木质素是第二丰富的天然聚合物，也是传统化石燃料的一种有前景的替代能源。在本研究中，我们在分子水平上研究了木质素化合物在人工紫外光条件下的转化。在石油组学领域，已经对原油在阳光照射后自然界中这种光诱导的成分分布变化进行了研究。我们将类似的高分辨率质谱实验策略应用于木质素，并展示了各种数据处理方法，以揭示两个样本集极其复杂的数据集之间的特征差异，一个是光照射前的天然对照样本，另一个是光照射后的样本，使用傅里叶变换离子回旋共振质谱法。图形摘要：对照和紫外氧化木质素样品质谱的肯德里克质量亏损与标称肯德里克质量的关系。
