A Mass Spectrometer for Elemental Analysis based on Fieldable Technologies
Poster Mar 03, 2014

Hilary Brown, Jennifer Speer, John Gerling, and Kenyon Evans-Nguyen
Laser ablation (LA) can facilitate direct analysis of solid samples for mass spectrometry (MS), and is often coupled with an inductively coupled plasma torch (ICP). LA-ICP-MS is now widely used for accurate elemental and isotopic analysis; however, the technique is not fieldable, primarily due to the gas and power requirements of the ICP torch. A mass spectrometer system for elemental and isotopic analysis using technology that is amenable to portable instrumentation is being studied. Solid samples are being ablated with an excimer laser and the resulting particle and ion plume will flow through a microwave plasma torch (MPT) and into an ion trap mass spectrometer. Preliminary data confirms that using laser ablation directly coupled with an ion trap mass spectrometer is a viable technique for detecting metals (e.g., lead, cobalt) and refractory compounds (e.g., strontium titanate). Current efforts are focused on enhancing sensitivity by incorporating a custom MPT, a modification of a design by Bilgic and co-workers which is being fabricated and tested. While we anticipate that LA-MPT-MS will have somewhat reduced sensitivity relative to LA-ICP-MS, MPTs, laser ablation and ion trap mass spectrometers can all be incorporated into portable instruments. This unique LA-MPT-MS instrumentation is promising for rapid elemental and isotopic analysis in the field.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

OTHER POSTERS
Nitrogen metabolism in Mycobacterium tuberculosis: a systems-based approach
PosterPrevious studies suggested that Mycobacterium tuberculosis obtains nitrogen from a diverse range of intracellular nutrients including amino acids. Here, we use a novel system’s based three-pronged approach to define pathways for uptake and assimilation of nitrogen.
READ MOREAnalysis of Extract Drying Criteria for Oil & Grease Method 1664A/B
PosterAnalysis of Extract Drying Criteria for Oil & Grease Method 1664A/B
READ MORERole of Elevated Airway Glucose (and Other Biochemicals) in Bacterial Infections
PosterBacteria that live in the airways need something to eat: they mainly use host derived biochemicals, for example glucose. When levels of airway biochemicals are dysregulated, bacterial colonisation increases, enabling infection. We investigated how changes in airway glucose effect bacterial infection.
READ MOREComments | 0 ADD COMMENT
Like what you just read? You can find similar content on the communities below.
Analysis & Separations Applied Sciences Diagnostics Drug DiscoveryTo personalize the content you see on Technology Networks homepage, Log In or Subscribe for Free
LOGIN SUBSCRIBE FOR FREEWorld Congress on Advanced Biomaterials and Tissue Engineering
Jun 20 - Jun 21, 2018
Login
You must be logged in to post a comment.