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Monday, October 20, 2014
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Trace Analysis of Isothiazolinones in Water Samples by Large-Volume Direct Injection Liquid Chromatography Tandem Mass Spectrometry
P. Speksnijder, J. van Ravestijn, and P. de Voogt

Isothiazolinones are used as preservatives, biocides and desinfectants in variety of industrial and domestic applications. The purpose of this study was to develop and optimize an LC–MS/MS method that would enable the determination without any derivatization or preconcentration step of isothiazolinones used in membrane technology for water purification and in household products, at levels relevant for the water cycle.

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Hyphenated Techniques as Modern Detection Systems in Ion Chromatography
K.M. Ruth, A. Wille, S. Czyborra and J. Kleimann

Historically ion chromatography (IC) using conductivity detection has been successfully used for the analysis of ionic (e.g., anions and cations) and polar substances (e.g., organic acids or sugars). However, due to current toxicity concerns, analyses in complex matrices require improved sensitivities and selectivities.

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Stable Isotope Dilution Analysis of Organic Pollutants Using LC-MS/MS (QqQ) and Isotope Pattern Deconvolution
A. Castillo, E. Gracia-Lor, A.F. Roig-Navarro, P. Rodriguez-Gonzalez, J.V. Sancho and J.I. García Alonso

LC-MS/MS equipped with a triple quadrupole (QqQ) in the Selected Reaction Monitoring (SRM) has been widely accepted as the main tool in the identification, structural characterization and quantitative determination of semi-polar and polar organic pollutants in food and environmental samples. However there are limitations with these techniques.

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Proton-Transfer Reaction Time of Flight Mass-Spectrometry (PTR-TOF-MS): Comparison of Compact-Time of Flight (C TOF) and High Resolution-Time of Flight (HRS TOF) Platforms
A. Jordan, G. Hanel, E. Hartungen, P. Sulzer, H. Seehauser, S. Haidacher, R. Schottkowsky, F. Petersson, C. Lindinger, L. Mark and T. D. Mark

This poster outlines the latest developments in PTR-TOFMS technology which exceed previously reported TOF setups in terms of sensitivity, detection limits and fast response time.

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Novel Developments in Proton-Transfer-Reaction Mass-Spectrometry (PTR-MS): Switchable Reagent Ions (PTR+SRI-MS) and ppqv Detection Limit
A. Jordan, G. Hanel, E. Hartungen, P. Sulzer, H. Seehauser, S. Haidacher, R. Schottkowsky, C. Lindinger, L. Mark and T. D. Mark

Proton Transfer Reaction - Mass Spectrometry (PTR-MS) is a well established technique for real-time trace gas analysis. This poster reports the latest developments in this field.

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Development of a Lab-on-a-Chip for the Characterization of Human Cells
Richter, L., Stepper, C., Mak, A., Brückl, H. and Ertl, P.

Cell chips are developed to continuously monitor mammalian cell population dynamics in a non-invasive manner. In the presented work we describe the design, fabrication and characterization of a lab-on-a-chip for quantitative cell analysis.

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Label-free Identification of Microorganisms using a Contact-less Dielectric Microsensor
Ertl, P., Richter, L., Reinthaler, A., Stepper, C., Mak, A., Kast, M., Heer, R. and Brückl, H.

Microfabricated biochips are developed to continuously monitor cell population dynamics in a non-invasive manner. In the presented work we describe the novel combination of contact-less dielectric microsensors and microfluidics to promote biofilm formation for quantitative cell analysis.

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Showing Results 21 - 27 of 27
Scientific News
Unique Catalysts for Hydrogen Fuel Cells Synthesized in Ordinary Kitchen Microwave Oven
Researchers show how a unique nano-alloy creates a new type of catalysts for highly efficient oxygen reduction.
Nanoparticles Accumulate Quickly in Wetland Sediment
Aquatic food chains might be harmed by molecules "piggybacking" on carbon nanoparticles.
Detecting Pharmaceutical and Personal Care Products in Water
A simple, more convenient method than conventional guidelines.
How to Make Stronger, “Greener” Cement
Analysis of material’s molecular structure leads to a new formula that could cut greenhouse-gas emissions.
Mass Spectrometry in Your Hand
Electrospray arrays can dramatically downsize systems and costs for onsite chemical analysis and many other applications.
Breakthrough Could Herald Cheap Green Energy
Scientists have taken a major step forward in the production of hydrogen from water which could lead to a new era of cheap, clean and renewable energy.
Assessing the Costs and Benefits of Fracking
New analysis finds hydraulic fracturing poses dangers for people living near the wells, now a Stanford-led study believes we can do better.
Dietary Recommendations May Harm Environment
If Americans adopted the USDA's "Dietary Guidelines for Americans, 2010," recommendations while keeping caloric intake constant, diet-related greenhouse gas emissions would increase 12 percent.
The Power of Salt
MIT study investigates power generation from the meeting of river water and seawater.
Stanford Research Shows Value of Clams, Mussels in Cleaning Dirty Water
New Stanford research shows that bivalves can cleanse streams, rivers and lakes of potentially harmful chemicals that treatment plants can't fully remove.
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