Multiclass Pesticide Residue Analysis in Fruit and Vegetable Samples by Combining Acetone-Based Salting-Out Assisted Extraction with Dispersive Liquid-Liquid Microextraction

Table 4

Recovery of multiclass pesticides from tomato samples spiked at three different concentration levels ().

Analyte	Added (µg/kg)	Found (µg/kg)	%recovery	%RSD
Carbofuran	120	117.2	97.6	4.0
	400	373.1	93.2	4.8
	1000	890.6	89.1	5.7
Atrazine	60	62.2	103.6	2.2
	200	182.7	91.3	7.6
	500	434.2	86.8	1.3
Benalaxyl	60	59.2	100	4.2
	200	203.1	105.6	2.4
	500	523.5	109.5	6.7
Chlorpyrifos	60	61.5	102.5	6.8
	200	179.3	89.6	2.5
	500	474.2	94.8	5.2
4,4′-DDT	60	60.4	100.7	7.4
	200	180.0	90.0	2.5
	500	438.4	87.6	3.0
Bifenthrin	60	59.7	99.5	4.5
	200	180.3	90.1	1.6
	500	443.2	88.6	1.5