日本質量分析学会 第67回質量分析総合討論会

Abstract

Poster Presentations

Day 2, May 16(Thu.)  Room P (Multi-purpose Hall)

Direct SPME-MS Screening of Various Compounds such as Pesticides, PAHs and Contaminants in Waste Water Using SICRIT Soft Ionization Source

(1AMR, 2Plasmion, 3CTC, 4ETH)
Jan-Christoph Wolf2,4, Anna Huba4, Mario Mirabelli3,4, Renato Zenobi4, Yasuhiko Bando1, oMotoshi Sakakura1

The ability to perform a fast and simple trace analysis has become a necessity in numerous fields, such as biomedical, forensic, food, and environmental analysis. Ambient mass spectrometry has been proven to be a versatile tool for fast and direct analysis, requiring minimal or no sample preparation. Our approach to address this demand involves the direct coupling of solid-phase microextraction (SPME) to a very efficient ionization source (SICRIT, soft ionization by chemical reaction in transfer) based on a dielectric barrier discharge (DBD). This coupling enables an automated, quick, sensitive, and robust detection of compounds of interest. The versatility and sensitivity of our source and approach were previously demonstrated, for example for the sub-ng/L detection of pesticides in fruit juice and PAHs in the ng/L range. Also trace levels of common contaminants (e.g. DEET, benzotriazole, β-estradiol) were detected in waste water using the SPME-SICRIT-MS coupling. These promising results evidence that this approach is of great interest for quick (field) screening methods for a large polarity range and a broad field of possible applications.