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. 2023 Jul 15;8(29):25749–25757. doi: 10.1021/acsomega.3c00385

Table 3. The Integrated Thermal Desorption Profile Peak Areas (PAs) of Detected Pesticides in Different Sample Matrices and the Corresponding Quantitative Results Gained with Validated Methods.

  Formula adduct peak area quantitative detection (mg/kg)a
Watermelon extract        
dimethomorph C21H22ClNO4 [M+H]+ 8.79E2 0.010
dinotefuran C7H15N4O3+ [M+Br] 2.41E3 0.011
imazalil C14H14N2Cl2O [M+H]+ 1.12E4 0.83
Lime extract        
azoxystrobin C22H17N3O5 [M+H]+ 1.74E3 0.022
imazalil C14H14N2Cl2O [M+H]+ 1.09E5 1.5
Avocado extract        
thiabendazole C10H7N3S [M+H]+ 1.57E5 0.51
Pineapple extract        
fludioxonil C12H6F2N2O2 [M+Br] 5.35E5 0.48
diazinonb C12H21N2O3PS [M+H]+ 1.1E3 0.011
Pineapple swabbingc        
fludioxonil C12H6F2N2O2 [M+Br] 4.2E5 0.48
diazinon C12H21N2O3PS [M+H]+ 7.9E2 0.011
Pineapple juice        
fludioxonil C12H6F2N2O2 [M+Br] 4.4E3 0.48
diazinon C12H21N2O3PS [M+H]+ 1.1E2 0.011
a

Quantitative detection presents the concentrations reported in mg/kg, which are correlated with the concentrations obtained from standardized measurements performed on the same samples by the Finnish Customs.

b

The measurement of pineapple extract in positive mode was conducted by injecting 5 μL of the fruit extract.

c

The pesticide content of the pineapple fruit swab is reported in relation to the whole pesticide content of the fruit determined by the Finnish Customs using the standardized procedures. This approach was followed as the actual pesticide amount present in the surface of the fruit was unknown.