Synthesis and Characterization of TiO₂ Modified with Polystyrene and Poly(3-chloro-2-hydroxypropyl Methacrylate) as Adsorbents for the Solid Phase Extraction of Organophosphorus Pesticides

Table 3

Recoveries (%) for OPPs () with hybrid particles.

Pesticide	Recovery (%) ± RSD (%)
	TiO2-PClHPMA	TiO2-PS
Fensulfothion	5.60 ± 1.04	91.77 ± 7.55
Parathion methyl	14.74 ± 2.88	91.87 ± 2.69
Coumaphos	26.37 ± 5.05	43.73 ± 3.85
Diazinon	22.19 ± 2.92	72.68 ± 1.20