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Investigators at Oak Ridge National Laboratory Have Reported New Data on Mass Spectrometry (Fully automated laser ablation liquid capture surface...

July 15, 2014



Investigators at Oak Ridge National Laboratory Have Reported New Data on Mass Spectrometry (Fully automated laser ablation liquid capture surface analysis using nanoelectrospray ionization mass spectrometry)

By a News Reporter-Staff News Editor at Journal of Technology -- A new study on Mass Spectrometry is now available. According to news reporting out of Oak Ridge, Tennessee, by VerticalNews editors, research stated, "Laser ablation provides for the possibility of sampling a large variety of surfaces with high spatial resolution. This type of sampling when employed in conjunction with liquid capture followed by nanoelectrospray ionization provides the opportunity for sensitive and prolonged interrogation of samples by mass spectrometry as well as the ability to analyze surfaces not amenable to direct liquid extraction."

Our news journalists obtained a quote from the research from Oak Ridge National Laboratory, "A fully automated, reflection geometry, laser ablation liquid capture spot sampling system was achieved by incorporating appropriate laser fiber optics and a focusing lens into a commercially available, liquid extraction surface analysis (LESA())-ready Advion TriVersa NanoMate system. Under optimized conditions about 10% of laser-ablated material could be captured in a droplet positioned vertically over the ablation region using the NanoMate robot-controlled pipette. The sampling spot size area with this laser ablation liquid capture surface analysis (LA/LCSA) mode of operation (typically about 120 m? x ?160 m) was approximately 50 times smaller than that achievable by direct liquid extraction using LESA() (ca 1 mm diameter liquid extraction spot). The setup was successfully applied for the analysis of ink on glass and paper as well as the endogenous components in Alstroemeria Yellow King flower petals. In a second mode of operation with a comparable sampling spot size, termed laser ablation/LESA(), the laser system was used to drill through, penetrate, or otherwise expose material beneath a solvent resistant surface. Once drilled, LESA() was effective in sampling soluble material exposed at that location on the surface."

According to the news editors, the research concluded: "Incorporating the capability for different laser ablation liquid capture spot sampling modes of operation into a LESA()-ready Advion TriVersa NanoMate enhanced the spot sampling spatial resolution of this device and broadened the surface types amenable to analysis to include absorbent and solvent-resistant materials."

For more information on this research see: Fully automated laser ablation liquid capture surface analysis using nanoelectrospray ionization mass spectrometry. Rapid Communications In Mass Spectrometry, 2014;28(11):1312-20. (Wiley-Blackwell - www.wiley.com/; Rapid Communications In Mass Spectrometry - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-0231)

Our news journalists report that additional information may be obtained by contacting M. Lorenz, Organic and Biological Mass Spectrometry Group, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6131, United States. Additional authors for this research include O.S. Ovchinnikova and G.J Van Berkel.

Keywords for this news article include: Oak Ridge, Tennessee, United States, Mass Spectrometry, North and Central America.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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