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Mobility of Aeroallergens in Home: Effect of Location of Air Sampling and Implication for Evaluation of Patient Exposure
Julian Gordon1, Paul Detjen, Andrea Wachter & Prasanthi Gandhi1

The Inspirotec sampler permitted the easy testing of multiple locations within a household. Air sampling simultaneously at 12 locations by other technologies would have been technically challenging. These were run by an untrained operator.

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Lutjanus jocu (Dog snapper) as a bio-indicator of emerging contaminants and changes in environmental condition.
M. Sánchez-García1, S. J. Zottoli2 & L.Roberson-Murillo1

Our research assesses the use of Lutjanus jocu as a bioindicator of changes in environmental condition and water contaminated with toxic substances in estuarine ecosystems.

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Determination of C2-C12 Aldehydes in Water by SPME Arrow On-Fiber Derivatization and GC/MS
Peter Egli, Beat Schilling, Guenter Boehm, Kai Schueler

A method applying SPME Arrow extraction and on-fiber derivatization for the quantitation of C2-C12 aldehydes in water by GC/MS is described.

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Minimizing Carry-over for High Throughput Analysis
Christian Berchtold1, Reto Bolliger2, Guenter Boehm2, Götz Schlotterbeck1

Minimal carry-over is a prerequisite for high throughput analysis. However, minimized carry-over and cycle time are competing and a careful optimization is mandatory. In this study the influence of wash conditions on carry-over of various compounds was investigated. A strategy to minimize carry-over was developed. The influences of different wash tasks were investigated. Finally the contribution of different system components such as injector valve or column was studied.

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A Comparison of ITEX Dynamic Headspace–GC/MS to other Enrichment Techniques for Analysis of Flavoring Compounds
Douglas Doster1; Roger Pearson1; Sean Eppel1; Ken Rice1; Tom Flug2; Brian Peat2; Guenter Boehm2

Enrichment techniques are commonly used for the analysis of flavoring compounds in different matrices with GC/MS. Analysis of flavoring compounds is done by purge & trap, SPME or headspace, depending on requirements for sensitivity. The In-Tube Ex¬traction (ITEX) Dynamic Headspace uses a micro trap filled with an adsorbent material to efficiently extract the compounds. Here we evaluate if the ITEX can be used to effectively analyze for these compounds and reduce the analyst’s time involved.

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High Performance Comprehensive Two-Dimensional Gas Chromatography Coupled with a High Resolution Multi-Reflecting TOFMS for Confident Non-Target Analyte Identification
Scott J. Pugh, Viatcheslav Artaev, Mark F. Merrick, Jack Cochran

The use of comprehensive two-dimensional gas chromatography to help increase chromatographic resolution is a major step in tackling the problem of confident peak identification in a complex sample matrix. Combining the separation power of two-dimensional gas chromatography, with resolving power greater than 25,000, and sub ppm mass accuracies of a high resolution multi-reflecting TOFMS is the ideal solution to confident compound identification within a complex sample matrix.

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Development of a Paper-Based Fluidic Device for Phosphorus Detection
Patricia K. Rusch and Kyle A. Cissell

This poster displays the successful beginning stages of an innovative way to detect phosphorus in standing bodies of water by minimizing the quantity of chemicals used, reducing the cost of analysis instrumentation, allowing the potential for real-time monitoring, and producing consistent and reliable results.

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Non-Target Analysis of Electronic Waste Samples from China
Jonathan D. Byer, Ed Sverko, Kurunthachalam Kannan, Qian Wu, Joe Binkley

GC×GC-HRT is a powerful tool for the comprehensive analysis and
chemical characterization of analytes in complex matrices. The combination of high resolution front-end separation with high
resolution time-of-flight mass spectrometry made possible the
identification of compounds previously unknown in these samples.

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Study Of The Active Bacterial Community In Two Membrane Bioreactors
Moreno-Mesonero, L.1, Moreno, Y.1*, Morillo, J.A., Muñagorri, F.2 and Alonso, J.L.1

In this work, bacterial communities from two MBR systems treating leachates were evaluated using the 16S rRNA metagenomics approach, with and without a viability dye (Propidium Monoazide, PMA).

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Rapid Biosensor-Based Detection of Environmental Contamination by Petroleum Hydrocarbons, PAHs and Heavy Metals
Nigel J Silman*, Jeremy G Thomas & Peter Riggs

In this study, we evaluated different freeze-drying excipients to stabilise the biosensor and remove the requirement to store bacteria at -20??C.

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Scientific News
Elevated Bladder Cancer Risk in New England and Arsenic in Drinking Water From Private Wells
Researchers have found that drinking water from private wells, may have contributed to the elevated risk of bladder cancer in northern new England.
Detecting Minute Nano Amounts In Environmental Samples
The NanoUmwelt project is developing a technique that can detect nanomaterials in a variety of environmental samples.
Bioreactors Ready for the Big Time
Bioreactors are passive filtration systems that can reduce nitrate losses from farm fields.
Microbial Biosensor Designed To Evaluate Water Toxicity
UAB researchers develop new paper-based biological tool.
Coding and Computers Help Spot Methane, Explosives
Coded apertures improve and shrink mass spectrometers for field use.
Role Of Ancestry In Soil Communities Of Bacteria Revealed
Northern Arizona University researchers used quantitative stable isotope probing to measure bacterial activity in intact soil communities.
Environmental Cleanup Tech Rids Oil from Water
A new technology that is easy to manufacture and uses commercially available materials makes it possible to continuously remove oils and other pollutants from water, representing a potential tool for environmental cleanup.
Fracking's Impact on Drinking Water Sources
A case study of a small Wyoming town reveals that practices common in the fracking industry may have widespread impacts on drinking water resources.
Coral-on-a-Chip Cracks Coral Mysteries
Growing corals in the lab reveals their complex lives.
Waste Water Reveals Drug Secrets
Methamphetamine residue found in the wastewater of a Queensland city has multiplied five times since 2009.
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