Wang Wu, Vas Gyorgy, Dommisse Roger, Loones Kristof, Claeys Magda
Department of Pharmaceutical Sciences, University of Antwerp (Campus Drie Eiken), Universiteitsplein 1, B-2610, Belgium.
Rapid Commun Mass Spectrom. 2004;18(16):1787-97. doi: 10.1002/rcm.1553.
The diastereoisomeric 2-methyltetrols, 2-methylthreitol and 2-methylerythritol, were recently reported as major secondary aerosol components in natural forest aerosols and proposed as molecular markers for the photooxidation of isoprene. In this study, we examine the complex electron and methane chemical ionization behaviors of their trimethylsilyl ethers. In order to gain insight into their fragmentation behaviors, threitol and erythritol were studied as model compounds, and deuterium labeling of the trimethylsilyl groups and ion trap MS2 experiments were performed.
非对映异构的2-甲基四醇、2-甲基苏糖醇和2-甲基赤藓糖醇，最近被报道为天然森林气溶胶中的主要二次气溶胶成分，并被提议作为异戊二烯光氧化的分子标志物。在本研究中，我们研究了它们的三甲基硅醚复杂的电子和甲烷化学电离行为。为了深入了解它们的碎裂行为，以苏糖醇和赤藓糖醇作为模型化合物进行研究，并进行了三甲基硅基的氘标记和离子阱二级质谱实验。
