ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Gas chromatography with surface ionization detection of nitro pesticides

Seiji Takahashi, Futoshi Nagamura, Miki Sasaki, and Toshihiro Fujii

Department of Chemistry, Faculty of Sciences and Engineering, Meisei University, Hodokubo 2-1-1, Hino, Tokyo 191-8506, Japan

E-mail: fujii@chem.meisei-u.ac.jp

Received: 2 February 2009  Revised: 1 April 2009  Accepted: 2 April 2009

Abstract: A surface ionization gas chromatographic detector, based upon positive surface ionization, was used in capillary gas chromatography to sensitively and selectively detect nitro pesticides: pendimethalin, trifluralin, flumetralin. Higher sensitivity (better detection limit), substance specificity, and advantageous applicability are reported. Sensitivity to pendimethalin, trifluralin, and flumetralin was 1.4 C g⁻¹, 1.1 C g⁻¹, and 1.0 C g⁻¹, respectively, with the linear range of operation greater than 1 × 10⁵ for these compounds. The minimum detectable level was in the range of 10⁻¹³ g s⁻¹. Compared with an atomic emission detector, SID provided a 110 times better detection limit for trifluralin.

Keywords: nitro pesticides - surface ionization - gas chromatography - surface ionization detector - pendimethalin - trifluralin - flumetralin

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-009-0062-2

Chemical Papers 63 (5) 613–616 (2009)