Detection of Organophosphorus Pesticides in Wheat by Ionic Liquid-Based Dispersive Liquid-Liquid Microextraction Combined with HPLC

Table 1

Evaluation of method performance.

Compounds	Linearity range (g/g)	1 g/g spiked		5 g/g spiked		50 g/g spiked		LOD (g/kg)
		EF	RSD (%) ()	EF	RSD (%) ()	EF	RSD (%) ()
Fenitrothion	0.01–100	332.4	1.8	250.4	2.5	203.8	4.6	0.1
Fenthion	0.01–100	251.4	3.8	297.8	5.5	214.3	6.3	0.1
Phoxim	0.01–100	328.4	3.4	265.0	5.9	264.0	0.6	0.1