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IonSense/AMR ランチョンセミナー

Moderator: Yasuhiko Bando (AMR, Inc.) 

1. DART-MS Strategies for Rapid Screening and Quantitation of Pesticides

Elizabeth Crawford (IonSense, Inc.)

Pesticides  and  fungicides  can  be  detected  rapidly  by  using  DART-MS.  The  capability  for screening and　quantitation of residues in order to efficiently monitor produce products before reaching the consumer market is the　topic of this presentation. The Direct Analysis in Real Time (DART) ambient ionization technique offers the ability to rapidly screen the surface of produce for  pesticides  by  a  direct  swabbing  method  and  permits  direct  analysis  of  fruit  juices  in seconds. With automated sample introduction rapid screening and quantitative measurements can be completed using DART ionization coupled to high resolution accurate mass and triple quadrupole mass　spectrometers. 

2. OpenSpot®  Mass  Spectrometry  tools  for  Real-Time  Quality  Assessment  using  DART 

ionization sources

Brian Musselman (IonSense, Inc.)

The rapid sampling of DART-MS permits monitoring of reaction products in seconds per sample using only a few microliters of sample. A rapid desorption system that allows for both detection of the acids by negative ion detection of the deprotonated molecule. The utility of this method for quality control experiments will be discussed using determination of fatty acids from edible oil. In these experiments the mesh is attached to a variable-current power supply that can deliver sufficient current to heat the sample at a rate > 20X faster than the conventional DART cartridge heater.As monitoring of the production of fatty acids is completed in seconds per sample the method shows promise as a tool for detection of low and moderate levels of contaminants, monitoring the progress of biofuel production, detection of adulterants and non-specific threats. 

3. Advantages of Using DART Ionization with Different Types of Mass Specs 

Teruhisa Shiota (AMR, Inc.)

Various examples of DART-MS analysis will be presented to illustrate the advantages of using the Direct Analysis in Real Time ionization method with different types of mass spectrometers such as single/triple quadrupole and　Orbitrap. The new DART ID CUBE features more powerful heating mechanism to allow analyses of metal organic complexes and pigments that were difficult to analyze with the conventional DART ionization sources.

ポスター発表

１．Quantitative Analysis of Carbendazim in Orange Juices by Direct Analysis in Real Time（DART） Mass Spectorometory^{発表資料！}