{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,4]],"date-time":"2026-07-04T15:51:33Z","timestamp":1783180293181,"version":"3.54.6"},"reference-count":58,"publisher":"Wiley","issue":"21","license":[{"start":{"date-parts":[[2023,9,14]],"date-time":"2023-09-14T00:00:00Z","timestamp":1694649600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2021YFA1502600"],"award-info":[{"award-number":["2021YFA1502600"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["12105285"],"award-info":[{"award-number":["12105285"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["92045301"],"award-info":[{"award-number":["92045301"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Rapid Comm Mass Spectrometry"],"published-print":{"date-parts":[[2023,11,15]]},"abstract":"<jats:sec>\n                    <jats:title>Rationale<\/jats:title>\n                    <jats:p>Cooking oil fumes contain numerous hazardous and carcinogenic chemicals, posing potential threats to human health. However, the sources of these species remain ambiguous, impeding health risk assessment, pollution control and mechanism research.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>To address this issue, the thermal oxidation of three common unsaturated fatty acids (UFAs), namely oleic, linoleic and linolenic acids, present in vegetable oils was investigated. The volatile and semi\u2010volatile products were comprehensively characterized by online synchrotron radiation photoionization mass spectrometry (SR\u2010PIMS) with two modes, which were validated and complemented using offline gas chromatography (GC)\/MS methods. Tunable SR\u2010PIMS combined with photoionization efficiency curve simulation enabled the recognition of isomers\/isobars in gaseous fumes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>SR\u2010PIMS revealed over 100 products, including aldehydes, alkenes, furans, aromatic hydrocarbons, etc., such as small molecules of formaldehyde, acetaldehyde, acrolein, ethylene and furan, which are not readily detected by conventional GC\/MS; and some unreported fractions, e.g. ketene, 4\u2010ethylcyclohexene and cycloundecene(E), were also observed. Furthermore, real\u2010time monitoring of product emissions during the thermal oxidation of the three UFAs via SR\u2010PIMS revealed that linolenic acid may be the major source of acrolein.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>SR\u2010PIMS has been demonstrated as a powerful technique for online investigation of cooking oil fumes. This study achieved comprehensive characterization of volatile and semi\u2010volatile products from the thermal oxidation of oleic, linoleic and linolenic acids, facilitating the traceability of species in cooking fumes and aiding in exploring the thermal reactions of different vegetable oils.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/rcm.9634","type":"journal-article","created":{"date-parts":[[2023,9,15]],"date-time":"2023-09-15T01:12:16Z","timestamp":1694740336000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Study on the thermal oxidation of oleic, linoleic and linolenic acids by synchrotron radiation photoionization mass spectrometry"],"prefix":"10.1002","volume":"37","author":[{"given":"Bing","family":"Qian","sequence":"first","affiliation":[{"name":"National Synchrotron Radiation Laboratory University of Science and Technology of China  Hefei Anhui China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yonghua","family":"Hu","sequence":"additional","affiliation":[{"name":"Center of Technology China Tobacco Anhui Industrial Co. 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