Study on Soil Mobility of Two Neonicotinoid Insecticides

Figure 2

Chromatograms of a standard solution of CLO and TMX at 2.50 μg/mL (a), a blank clay sample (b), and the same clay sample spiked with CLO and TMX at 1.0 μg/g (c). Chromatograms were recorded at 269 nm (Channel 1, black line) and at 252 nm (Channel 2, red line). Retention times were 3.17 and 4.65 min for TMX and CLO, respectively.