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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Takahashi, S., Nagamura, F., Sasaki, M. et al. Gas chromatography with surface ionization detection of nitro pesticides. Chem. Pap. 63, 613–616 (2009). https://doi.org/10.2478/s11696-009-0062-2
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DOI: https://doi.org/10.2478/s11696-009-0062-2