| Title: | Headspace analysis for screening of volatile organic compound profiles of electronic juice bulk material |
| Author(s): | LeBouf RF; Burns DA; Ranpara A; Attfield K; Zwack L; Stefaniak AB; |
| Address: | "Field Studies Branch, Respiratory Health Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, Morgantown, WV, 26505, USA. rlebouf@cdc.gov. Field Studies Branch, Respiratory Health Division, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, Morgantown, WV, 26505, USA. California Department of Public Health, Richmond, CA, 94804, USA. Hazard Evaluations and Technical Assistance Branch, Division of Surveillance, Hazard Evaluations, and Field Studies, National Institute for Occupational Safety and Health, Cincinnati, OH, USA" |
| DOI: | 10.1007/s00216-018-1215-3 |
| ISSN/ISBN: | 1618-2650 (Electronic) 1618-2642 (Print) 1618-2642 (Linking) |
| Abstract: | "The use of electronic nicotine delivery systems continues to gain popularity, and there is concern for potential health risks from inhalation of aerosol and vapor produced by these devices. An analytical method was developed that provided quantitative and qualitative chemical information for characterizing the volatile constituents of bulk electronic cigarette liquids (e-liquids) using a static headspace technique. Volatile organic compounds (VOCs) were screened from a convenience sample of 146 e-liquids by equilibrating 1 g of each e-liquid in amber vials for 24 h at room temperature. Headspace was transferred to an evacuated canister and quantitatively analyzed for 20 VOCs as well as tentatively identified compounds using a preconcentrator/gas chromatography/mass spectrometer system. The e-liquids were classified into flavor categories including brown, fruit, hybrid dairy, menthol, mint, none, tobacco, and other. 2,3-Butanedione was found at the highest concentration in brown flavor types, but was also found in fruit, hybrid dairy, and menthol flavor types. Benzene was observed at concentrations that are concerning given the carcinogenicity of this compound (max 1.6 ppm in a fruit flavor type). The proposed headspace analysis technique coupled with partition coefficients allows for a rapid and sensitive prediction of the volatile content in the liquid. The technique does not require onerous sample preparation, dilution with organic solvents, or sampling at elevated temperatures. Static headspace screening of e-liquids allows for the identification of volatile chemical constituents which is critical for identifying and controlling emission of potentially hazardous constituents in the workplace" |
| Keywords: | Benzene/analysis Diacetyl/analysis *Electronic Nicotine Delivery Systems Gas Chromatography-Mass Spectrometry/*methods Menthol/analysis Solvents Volatile Organic Compounds/*analysis Electronic cigarette liquids Gas chromatography mass spectrometry Headspa; |
| Notes: | "MedlineLeBouf, Ryan F Burns, Dru A Ranpara, Anand Attfield, Kathleen Zwack, Leonard Stefaniak, Aleksandr B eng CC999999/Intramural CDC HHS/ Germany 2018/07/06 Anal Bioanal Chem. 2018 Sep; 410(23):5951-5960. doi: 10.1007/s00216-018-1215-3. Epub 2018 Jul 4" |
