Research Article

Three Different Spectrophotometric Methods for Simultaneous Determination of Pyriproxyfen and Chlorothalonil Residues in Cucumber and Cabbage Samples

Figure 12

Mean-centered ratio spectra (0.5, 1, 1.5, 2, 3, 4, 5, 6, and 7 μg·mL−1) of chlorothalonil in methanol as a blank.