| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5134314 | International Journal of Mass Spectrometry | 2017 | 5 Pages |
â¢A direct, rapid determination method for pesticides in red wine and white wine.â¢No sample preparation and chromatography separation used.â¢Comparison between with/without preparation, and DART combined with different mass analyzers.
A rapid, direct analytical method based on direct analysis in real time combined with triple quadruple mass spectrometry (DART-QqQ) was proposed. Without sample preparation and chromatography separation, 31 pesticides either in red wine or in white wine could be determined less than 3Â min. Pesticides in the range of 10-1000Â ng/mL had good linearities (R2Â >Â 0.99), performed on multiple reaction monitoring (MRM) mode by DART-MS/MS. The results of the limits of quantification (LOQs) were ranging between 25 and 500Â ng/mL. Moreover, we also compared different DART method, i.e., with/without preparation, and different mass analyzers. The result showed direct DART-QqQ had two times improvement in speed, and a better detectability compared with DART-TOF.
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