Gas chromatography with surface ionization detection of nitro pesticides |
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| Authors: | Seiji Takahashi Futoshi Nagamura Miki Sasaki Toshihiro Fujii |
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| Affiliation: | (1) Department of Chemistry, Faculty of Sciences and Engineering, Meisei University, Hodokubo 2-1-1, Hino, Tokyo 191-8506, Japan |
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| 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. |
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| Keywords: | nitro pesticides surface ionization gas chromatography surface ionization detector pendimethalin trifluralin flumetralin |
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