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Rapid screening of stobilurins in crude solid materials (wheat grains) using DART-TOFMS
Direct control of solid materials for pesticide residues is a challenging task enabling fast contamination screening. In our study, we investigated direct analysis of strobilurin fungicides in milled wheat grains. |
4/1/2008 |
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Analysis of stobilurins in wheat grains using DART-TOFMS
Strobilurins, systemic pesticides originated from natural fungicidal derivatives, play an important role in control of various plant pathogens. |
4/1/2008 |
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Analysis of deoxynivalenol in beer
Mycotoxins, toxic secondary metabolites of several fungal species, represent food safety issue of high concern. Deoxynivaleno, the most abundant trichothecene mycotoxin, can be found worldwide as a contaminant of wheat, barley, maize and other cereals. |
4/1/2008 |
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Direct analysis of caffeine in soft drinks and coffee and tea infusions
Analysis of caffeine in various foods and beverages is an important task for analytical laboratories, as its content is considered in assessment of product quality (coffee, cocoa beans and tea). |
4/1/2008 |
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GC/MS with a DART™ Ion Source
The output of a gas chromatograph was connected to an AccuTOF-DART™ to provide a simple GC/MS interface. |
3/21/2008 |
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AccuTOF DART Application Notes Booklet
Learn how easy it is to apply AccuTOF DART technology to a wide variety of Chemical and Forensic problems. Contains all of our AccuTOF DART Application Notes. |
3/21/2008 |
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Detection of Explosives in Muddy Water
To demonstrate DART’s ability to detect explosives in a “messy” sample, we took a sample of muddy water from a frog pond in the woods near our laboratory. |
2/27/2008 |
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DART Analysis of Aspirin: Correcting a Misapprehension
In a recently published comparison1 of the ambient ionization techniques direct analysis in real time (DART™ 2) and DESI3, it was reported that a protonated molecule was not observed for DART, whereas the protonated molecule could be observed for DESI and DAPCI. This is an incorrect observation, resulting from the use of different experimental conditions for DART than were used for the other two techniques. Mass spectra of aspirin measured on a JEOL AccuTOF-DART™ mass spectrometer under the correct operating conditions are shown here. All assignments for the mass spectral peaks were confirmed by exact mass measurements. |
1/31/2008 |
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Laundry Detective: Identification of a Stain
The AccuTOF-DART(TM) was recently applied to an unusual analytical problem: finding the cause of oily stains on freshly laundered shirts (Figure 1). No cutting or extraction was required. Stained and unstained regions of the shirt were placed in the DART gas stream and the mass spectra were acquired. |
1/31/2008 |
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JEOL ECS 400 NMR product brochure
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8/23/2007 |
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Perfluorokerosene or “PFK” (CI, negative-ion)
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7/25/2007 |
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PEG 600 (DART™, negative-ion, O2 adducts)
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6/18/2007 |
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Analysis of Acrylamide in Food by LC/Time-of-Flight Mass Spectrometry
Here, we describe a simple and rapid LC/Time-of-flight MS method with accurate mass measurement and “in-source CID” fragmentation for acrylamide analysis. |
5/16/2007 |
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Chemical Reaction Monitoring
DART provides a convenient means for monitoring the progress of chemical reactions. Reactants, intermediates, products and byproducts can be detected by simply dipping a glass rod into the reaction pot and then placing the rod in front of the DART ion source. Here we show the use of AccuTOF-DART to monitor the acetylation of 1,2-hexanediol as a function of time. |
3/8/2007 |
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Detection of the Peroxide Explosives TATP and HMTD
The explosive peroxide compounds triacetone triperoxide (TATP) and hexamethylenetriperoxide diamine (HMTD) are difficult to detect by conventional mass spectrometry methods. These compounds can be easily detected by the Direct Analysis in Real Time (DART™) ion source. |
2/22/2007 |