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Residue characterization of triadimefon in grapes by gas chromatography and mass spectrometry/mass spectrometry
Author(s) -
Cairns Thomas,
Siegmund Emil G.,
Chiu Kin S.,
Nelson Raymond
Publication year - 1989
Publication title -
biomedical and environmental mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0887-6134
DOI - 10.1002/bms.1200180205
Subject(s) - mass spectrometry , chromatography , residue (chemistry) , chemistry , gas chromatography–mass spectrometry , triadimefon , gas chromatography , organic chemistry , biology , botany , fungicide
A field study of the use of the new fungicide triadimefon (Bayleton®) on grapes has indicated that residue levels of 0.01 ppm may be expected on the ripe fruit in spite of the 60–75 day interval from spray to harvest. Triadimefon and its primary metabolite triadimenol (Bayton®) have been characterized by gas chromatography and mass spectrometry to provide identification down to a detection level of 0.001 ppm. Recovery studies on these fungicides have indicated that they are completely extracted by the single multi‐residue analytical methodology presently in use for monitoring fresh produce.