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Identifying Unknown Chemicals and Disinfection Byproducts in Swimming Pools and Hot Tubs
Jonathan D. Byer, Susan D. Richardson, Eric J. Daiber, Sridevi Anduri Chowdary, Joe Binkley, Jeff Patrick

DBPs were identified in finished water, tap water, swimming pool water, and hot tub water that were not present in the source water. High Resolution Deconvolution was used effectively to identify a greater number of peaks in the chromatogram than by nominal resolution MS.

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Automated, Rapid And Reliable Determination Of Dissolved Gases In Water By Static Headspace – Gas Chromatography
A. Caruso, M. Santoro, F. Bedini, P. Magni, S. Pelagatti

Purpose: Exploring the possibility to perform a quantitative determination of dissolved gases in water in a reliable and accurate way. Methods: The quantification of dissolved gases is performed by building a calibration curve spiking blank water samples with increasing quantities of saturated water followed by headspace sampling and GC/ FID analysis. Results: The results show good correlation factors and limit of quantification lower than 10ppb for the four gas analyzed.

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Method Optimization for Comprehensive Characterization of Petroleum with High Resolution Time-of-Flight Mass Spectrometry Platforms
Clecio F. Klitzke, David Alonso, Kevin Siek, Elizabeth Humston-Fulmer, Joe Binkley, Jeff Patrick

These results show the utility of high resolution time-of-flight mass spectrometry with high mass accuracy for comprehensive petroleomic studies. GC-HRT MS is especially useful for adding structural information in the analysis of complex samples like crude oil.

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Crude Oil And Asphaltene Characterization by Pyrolysis Coupled to Gas Chromatography High Resolution Time-of-flight Mass Spectrometry
Clecio F. Klitzke, David Alonso, Joe Binkley, Jeffery Patrick

Py-GC-HRTOFMS analysis with high resolution and high mass accuracy is crucial for identification of crude oil and asphaltene pyrolysis products by unequivocal chemical formula assignment, with enhancement of sensitivity and selectivity. Analysis of petroleum and respective asphaltene fractions from diverse geographical origins are under evaluation as part of future work.

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GC-MS Comparison of Lavindin Grosso Oil Obtained by Steam Distillation and SFE
Claudia Worley, Lisa Zona, Susan Sonchik Marine

Oil was extracted from Lavindin Grosso using steam distillation and using supercritical fluid extraction (SFE). Multiple analyses of the same extract demonstrated repeatability of the analytical method. The variability between batches of distillate bracketed the composition obtained by SFE. The differences among the oils could be attributed more to where the lavender was grown than to the extraction method.

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Cloud Point Extraction of Metal Oxide Nanoparticles in Water Samples Identified by Raman Spectroscopy and Quantified by Atomic Absorption Spectroscopy
Yanxiao Ma, Dr. Andrew F. Callender

Nanoparticles that are widely used in commercial products pose a threat to human health and the environment. This project proposes a cheaper and more effective method to identify and quantify metal oxide nanoparticles in water samples.

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Cloud Point Extraction of Metal Oxide Nanoparticles in Water Samples Identified by Raman Spectroscopy and Quantified by Atomic Absorption Spectroscopy
Yanxiao Ma, Dr. Andrew F. Callender

Nanoparticles that are widely used in commercial products pose a threat to human health and the environment. This project proposes a cheaper and more effective method to identify and quantify metal oxide nanoparticles in water samples.

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New Sorbent from Agro-industrial Waste and its Potential Use in 17ß-Estradiol and 17α-Ethynylestradiol Removal
Suzimara Rovani*, Éder C. Lima, Renato Cataluña, Andreia N. Fernandes

In recent years, the increasing introduction of new chemicals in the market, and the development of more accurate analytical methods, added a variety of endocrine disruptors compounds (EDC). Even though they are found in very low concentrations (range of ng L-1) there is still a lack of knowledge about long-term risks of EDC for non-target organisms as well as for human health.

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Trace Level Analysis of Perchlorate and Bromate in Various Water Matrices using Suppressed Ion Chromatography
Dr. Jay Gandhi, DR. Stuart Procter

Bromate and Perchlorate are ubiquitous analytes in various water matrices and analysis in trace level is a challenge

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Showing Results 21 - 30 of 47
Scientific News
Anti-Pollution Rules Have Uncertain Effects
New research suggests that estimates of the impacts of anti- pollution rules are much more uncertain than they are often portrayed.
Microchip Captures Clusters of Circulating Tumor Cells
Researchers have developed a microfluidic chip that can capture rare clusters of circulating tumor cells, which could yield important new insights into how cancer spreads.
Tiny Microbes With Potential To Cleanse Singapore’s Waterways
7-year study reveals Nature’s way of removing organic pollutants in raw water.
Using Microbial Communities to Assess Environmental Contamination
First there were canaries in coal mines, now there are microbes at nuclear waste sites, oil spills and other contaminated environments.
Nanomaterials In Sunscreens And Boats Leave Marine Life Vulnerable
Study shows that sea urchin embryos are more vulnerable to toxins when exposed to nanomaterials.
Diabetes Drug Found In Freshwater Is Potential Source Of Intersex Fish
Study shows exposure to metforim causes physical changes in male fish.
First Atlas Of Airborne Microbes Across US
Bacteria and fungal species were identified from outdoor dust samples collected from all 50 states.
Building Pollution Measurement Systems
Systems will help to improve Adirondack air quality and reduce incidence of asthma.
New Test To Revolutionise Disease Detection In People, Crops And Stock
A single-drop DNA test invented by UQ scientists could revolutionise the detection of diseases in humans, livestock and crops.
Tiny Optical Antennas: A Nano Revolution
Newly developed tiny optical antennas, which function like spotlights at the nanoscale, offer the potential to measure food safety, identify air pollutants and even quickly diagnose and treat deadly diseases, like cancer.
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