Simultaneous Determination of Parathion, Malathion, Diazinon, and Pirimiphos Methyl in Dried Medicinal Plants Using Solid-Phase Microextraction Fibre Coated with Single-Walled Carbon Nanotubes
Figure 3
Comparison of extraction efficiency between SWCNT fibre and PDMS fibre (target analyte, diazinon: 75 ng g−1). Experimental conditions for SWCNT fibre: extraction time, 35 min; extraction temperature, 70°C; desorption time, 4 min; desorption temperature, 230°C; amount of NaCl, 25 mg mL−1 and for PDMS fibre: extraction time, 30 min; extraction temperature, 60°C; desorption time, 5 min; desorption temperature, 240°C; amount of NaCl, 50 mg mL−1. Abbreviations: malathion (M), parathion (P), diazinon (D), pirimiphos methyl (PM).
