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Detection of reactive 1,2,3-hexatriene-5-one monomer by low-temperature atmospheric pressure ionization mass spectrometry

✍ Scribed by Wen-Shyang Wang; Pen-Wen Tseng; Chin-Hsing Chou; Jentaie Shiea

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 84 KB
Volume: 12
Category: Article
ISSN: 0951-4198
DOI: 10.1002/(sici)1097-0231(19980731)12:14<931::aid-rcm258>3.0.co;2-j

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✦ Synopsis

This study detected the extremely reactive carbenoid, 1,2,3-hexatriene-5-one (HTO), by low-temperature atmospheric pressure ionization (API) mass spectrometry. During the analysis the sample solution was maintained at À78 °C in the API source to prevent the analyte molecule from polymerizing. At this low temperature a strong protonated HTO signal was detected. At room temperature the compound polymerized rapidly and the mass spectrum was dominated by dimer ions. Signals due to protonated HTO-(H 2 O) 2 adducts were also detected, and can possibly be attributed to trace water in the organic solvent, or to ionization of the moisture as in atmospheric pressure chemical ionization.

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