Thermal analysis/evolved gas analysis using single photon ionization Mass spectrometry for the investigation of tobacco

• Published in: Journal of thermal analysis and calorimetry Vol. 113; no. 3; pp. 1667 - 1673
• Main Authors: Fischer, M., Wohlfahrt, S., Saraji-Bozorgzad, M., Matuschek, G., Post, E., Denner, T., Streibel, T., Zimmermann, R.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Dordrecht Springer Netherlands 01.09.2013; Springer
• Subjects: Analytical Chemistry; Biological and medical sciences; Calorimetry; Chemical properties; Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Investigations; Mass spectrometry; Measurement Science and Instrumentation; Medical sciences; Physical Chemistry; Polymer Sciences; Tobacco, tobacco smoking; Toxicology; Tobacco; Evolved gas analysis; Single photon ionization; Thermogravimetry; Coupled method; Gas release; Gas analysis; Nicotiana tabacum; Photoionization; Dicotyledones; Angiospermae; Spermatophyta; Solanaceae; Thermal analysis; Mass spectrometry
• ISSN: 1388-6150; 1588-2926; 1572-8943
• DOI: 10.1007/s10973-013-3143-y

A simultaneous thermogravimetry/differential scanning calorimetry device (STA) was coupled to single photon ionization time of flight mass spectrometry (SPI-TOFMS) for evolved gas analysis (EGA). Thermal resolution with thermogravimetric signals (TG/DTG) is delivered by STA. On-line coupled EGA with SPI-TOFMS retains the thermal information from the STA and substantiates these with correlating mass spectra. The application of vacuum ultraviolet (VUV)-photons (8–12 eV) for soft ionization, allows almost fragment-free ionization. Thus, it becomes possible to interpret mass spectra of complex matrices, like natural products evolving simultaneously several molecules, without an additional separation step. The STA–SPI-TOFMS on-line coupling offers the possibility to track subset mass traces during one STA run. Focusing on material-depended mass traces, differentiation of organic matrices is obvious. In this work two types of research cigarettes, 3R4F and CM6 were used. While the 3R4F cigarette is composed of a blend of different tobacco sorts and different curing methods, the CM6 research cigarette consists of pure flue cured tobacco. The advantages of coupling on-line chemical analysis methods to thermal analysis (TA) are in the context of the achieved thermo-molecular signatures.