Online Exploring the Gaseous Oil Fumes from Oleic Acid Thermal Oxidation by Synchrotron Radiation Photoionization Mass Spectrometry

被引:4
作者
Qian, Bing [1 ]
Hu, Yonghua [2 ]
Xu, Minggao [1 ]
Yang, Jiuzhong [1 ]
Liu, Chengyuan [1 ]
Pan, Yang [1 ]
机构
[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China
[2] China Tobacco Anhui Ind Co Ltd, Ctr Technol, Hefei 230088, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
oil fume; photoionization mass spectrometry; oleic acid thermal oxidation; online; synchrotronradiation; VOLATILE ORGANIC-COMPOUNDS; GAS-CHROMATOGRAPHY; LUNG-CANCER; TEMPERATURE OXIDATION; CARBONYL-COMPOUNDS; COOKING FUMES; EMISSIONS; PHASE; RISK; TIME;
D O I
10.1021/jasms.3c00259
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Cooking oil fumes are an intricate and dynamic mixture containing a variety of poisonous and hazardous substances, and their real-time study remains challenging. Based on tunable synchrotron radiation photoionization mass spectrometry (SR-PIMS), isomeric/isobaric compounds in the gaseous oil fumes from oleic acid thermal oxidation were determined in real time and distinguished by photoionization efficiency (PIE) curve simulation combined with multiple linear regression (MLR) analysis. A series of common carcinogens such as formaldehyde, acetaldehyde, acrolein, and several unreported chemicals including diethyl ether and formyl-cyclohexane were successfully characterized. Moreover, time-resolved profiles of certain components in gaseous oil fumes were monitored for 55 h. Distinct evolutionary processes were observed, indicating the consumption and formation of parent molecules, intermediates, and final products.
引用
收藏
页码:2680 / 2690
页数:11
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