Solid-Phase Extraction of Pesticides by Using Bioinspired Peptide Receptors

Table 2

Competitive absorption results using SPE cartridges recovery. The values are reported in percentage and were obtained using four-pesticide solution at the total concentration of 120 ppb (each pesticide at concentration of 30 ppb).

	Carbaryl	Chlorpyrifos	Malathion	Thiabendazole
	Recovery (%)
Blank	9 ± 1	20 ± 2	22 ± 3	7 ± 2
EWFQPW	60 ± 5	57 ± 3	100 ± 11	66 ± 7
EHWWPS	60 ± 4	60 ± 6	100 ± 9	58 ± 6
EHKMPS	50 ± 5	49 ± 5	96 ± 8	31 ± 4
Strata-X	81 ± 4	56 ± 3	100 ± 12	81 ± 4
C-18	74 ± 5	59 ± 3	95 ± 5	72 ± 3