Research Article

Multiresidue Pesticides Analysis of Vegetables in Vietnam by Ultrahigh-Performance Liquid Chromatography in Combination with High-Resolution Mass Spectrometry (UPLC-Orbitrap MS)

Table 5

Analytical figures of merit of the LC-Q-Exactive Orbitrap MS method for three representative pesticides.

NoAnalytestR (min)LOD (ng·mL−1)LOQ (ng·mL−1)MDL (pg)MQL (pg)

1Carbofuran8.030.090.300.51.5
2Azoxystrobin13.480.020.070.10.3
3Pyridaben19.540.090.300.51.5

Absolute method of detection (MDL) and method of quantitation (MQL) are defined as the absolute amount of analyte injected into the LC column.