Research Article
Simultaneous Determination of Ternary Mixture of Carboxin, Chlorpyrifos, and Tebuconazole Residues in Cabbage Samples Using Three Spectrophotometric Methods
Figure 10
Successive derivative ratio spectra of 1, 3, 5, 8, 10, 12, 15, 20, 25, 30, 40, and 50 μg/mL of chlorpyrifos in methanol at Δλ = 2 nm.