Simultaneous determination of sulfonylurea herbicides in tomatoes using the QuEChERS method coupled with HPLC

Applied Biological Chemistry

Table 3 Applying the developed method to 10 tomato samples

Pesticides	Korea MRLs^a (mg kg⁻¹)	EU-MRLs^b (mg kg⁻¹)	No. of samples
Pesticides	Korea MRLs^a (mg kg⁻¹)	EU-MRLs^b (mg kg⁻¹)	> LOQ	> LOD
Nicosulfuron	0.01^*	0.01
Thifensulfuron-methyl	0.01^*	0.01
Flucetosulfuron	0.01^*	0.01^*
Imazosulfuron	0.01^*	0.01
Propyrisulfuron	0.01^*	0.01^*
Metazosulfuron	0.01^*	0.01^*
Halosulfuron-methyl	0.01^*	0.01

^*A general default MRL of 0.01 mg kg⁻¹ was applied where a pesticide is not specifically classified
^aMaximum residue limit on Ministry of Drug and Safety
^bEuropean Union maximum residue level