Research Article

Simultaneous Determination of Ternary Mixture of Carboxin, Chlorpyrifos, and Tebuconazole Residues in Cabbage Samples Using Three Spectrophotometric Methods

Figure 11

Successive derivative ratio spectra of 1, 3, 5, 8, 10, 15, 20, 25, 30, 35, 40, and 45 μg/mL of tebuconazole in methanol at Δλ = 2 nm.