Functional Group Analysis of α-Pinene Oxidation Products Using Derivatization Reactions and High-Resolution Electrospray Ionization Collision-Induced Dissociation Mass Spectrometry
作者:Daisuke Fukuyama、Kanako Sekimoto
DOI:10.1021/jasms.3c00415
日期:2024.4.3
trimethylsilyl diazomethane, and acylation of alcohols by acetic anhydride), (ii) no preseparation high-resolution electrospray ionization mass spectrometry, and (iii) collision-induced dissociation. This technique was applied to functional group analysis of ozonolysis products for α-pinene. Multifunctional groups of known ozonolysis products were accurately identified. Furthermore, we successfully
单萜(C 10 H 16 )的氧化产物作为二次有机气溶胶形成的前体发挥着重要作用。它们含有多种具有多官能团的结构异构体。然而,这些异构体中只有少数已通过实验得到鉴定。我们描述了一种用于识别单萜氧化产物中包含的含氧官能团(羰基、羧基和羟基)的测量技术。该技术涉及(i)三个衍生反应( O- (2,3,4,5,6-五氟苄基)羟胺对羰基的肟化、三甲基甲硅烷基重氮甲烷对羧酸的甲酯化以及乙酸酐对醇的酰化),( ii) 无预分离高分辨率电喷雾电离质谱法,以及 (iii) 碰撞诱导解离。该技术应用于α-蒎烯臭氧分解产物的官能团分析。准确鉴定了已知臭氧分解产物的多功能基团。此外,我们成功地估计了以前未报道过的产品的多功能组。