ApplyingIn-SilicoRetention Index and Mass Spectra Matching for Identification of Unknown Metabolites in Accurate Mass GC-TOF Mass Spectrometry

Identification of Imidacloprid Metabolites in Onions Using High Resolution Accurate Mass Spectrometry (LC/Q-TOF MS) and Accurate Mass Tools

The use of the Agilent 6540 Q-TOF LC/MS system and Agilent MassHunter software tools have enabled the identification of six new metabolites of imidacloprid by MS/MS analysis. These metabolites and their structures were deduced from MS/MS studies with accurate mass, making it possible to better understand imidacloprid metabolism in onion as well as new metabolite targets for toxicity studies.

MALDI-TOF Mass Spectrometry for the Rapid Identification of Tick

24 A method for rapid species identification of ticks may help clinicians predict the disease outcomes 25 of patients with tick bites and may inform the decision as to whether to administer post-exposure 26 prophylactic antibiotic treatment. We aimed to establish a MALDI-TOF MS spectra database based 27 on the analysis of the legs of 6 tick vectors: Amblyomma variegatum, Rhipicephalus sanguineu...

Identification of etamiphylline and metabolites in equine plasma and urine by accurate mass and liquid chromatography/tandem mass spectrometry.

Etamiphylline camsylate (Millophylline V) was administered intravenously to two horses at a dose of 2.8 mg/kg. Urine and blood samples were taken up to 32 h post administration. Unhydrolyzed plasma and urine was extracted using solid phase extraction (SPE). The identity of the parent drug and metabolites was confirmed using a linear ion trap mass spectrometer and accurate mass analysis on an or...

accurate-mass spectra

MALDI-TOF mass spectrometry for direct bacterial identification

18 An ammonium chloride erythrocytes-lysing procedure was used to prepare a bacterial pellet 19 from positive blood cultures for direct MALDI-TOF mass spectrometry analysis. 20 Identification was obtained for 78.7% of pellets. Moreover, 99% of MALDI-TOF 21 identifications were congruent at species level when considering valid scores. This fast and 22 accurate method is promising. 23