Mass Spectrometry Imaging Analysis of Location of Procymidone in Cucumber Samples.

The localization of procymidone fungicide residue in cucumbers was investigated by mass spectrometry imaging (MSI). Cucumbers were grown harvested, and then divided into two groups, that were either sprayed or not sprayed with procymidone. The content of procymidone in the cucumbers was quantitatively determined by chromatographic techniques. Subsequently, the spatial distribution of procymidone was imaged by MSI. Procymidone reached the central, part of the cucumbers following spraying compared with the control.