Molecular cartography of residue pesticides on grape surface in 3D by ambient ionization tandem mass spectrometry   全文下載

Molecular cartography of residue pesticides on grape surface in 3D by ambient ionization tandem mass spectrometry

"Thermal desorption-electrospray ionization tandem mass spectrometry (TD-ESI/MS/MS) was used to characterize theresidual pesticides that were collected from the surface of a grape with metallic sampling probes. Fungicides, insecticides,and miticides were detected, where results were validated by simple solvent extraction followed by gaschromatography tandem mass spectrometry and liquid chromatography tandem mass spectrometry analyses. To explorethe distribution of pesticide residues on grape surfaces, 149 locations of a grape surface were collected and followed byTD-ESI/MS/MS analysis. The molecular cartography was then generated from analysis of residual pesticides on thegrape surface in 3D."