chemical detection Articles

  • How to identify issues in water quality

    Water quality can mean different things to different people and therefore depends on what standard of quality one is looking for, for example, water may be fine for fish to live in but lack the quality required for human consumption. To measure the quality of water accurately, tests are carried out to identify several key indicators. These characteristics are then compared ...


    By Aquaread Limited

  • Six reasons to get excited about the new LAB-X5000 benchtop XRF

    With handheld devices making it easier to analyse samples on the move, it’s easy to overlook the reliability, flexibility and sheer power of desktop XRF analysers. For 45 years, LAB-X has been a leading name among lab instruments around the world, and the latest in this tried and tested line of products has just been launched. Our XRF expert Matt Kreiner looks at why people are getting ...

  • Train derailment prompts contaminated land investigation

    On March 30th 2015 a long freight train, transporting a variety of goods including lumber and chemicals, wound its way through the state of Mississippi. At around 5pm, part of the train failed to negotiate a curved portion of the track in a rural area near Minter City, resulting in the derailment of nine railcars, one of which leaked chemicals onto agricultural farmland and woodlands. Emergency ...


    By Gasmet Technologies Oy

  • Chemical sensing with nanowires using electrical and optical detection

    Chemical nanosensors based on inorganic nanowires hold promise for the extremely sensitive, direct detection of pollutants, toxins and biomolecules on platforms small enough to be integrated on optoelectronic chips or even deployed in living organisms. This paper discusses two approaches to nanowire-based chemical and biological detection. First we review the development of electrically-driven ...


    By Inderscience Publishers

  • Book Review: Detection Technologies for Chemical Warfare Agents and Toxic Vapors

    Detection Technologies for Chemical Warfare Agents and Toxic Vapors, by Yin Sun and Kwok Y. Ong. CRC Press, 2005. 272pp. ISBN1-56670-668-8Keywords: book ...


    By Inderscience Publishers

  • A study of the physical and chemical damage on reverse osmosis membranes detected by autopsies

    Abstract Water treatment by reverse osmosis technology has as main aim to reject the maximum percentage of ions from raw water, giving as much treated water flow as possible. When there is a loss in these two parameters performance, it is essential to find the source of the failure, in order to use the necessary tools for its recovery. At this point, membrane autopsies are a very ...

  • Functionalised multi–walled carbon nanotubes for chemical vapour detection

    Oxygen plasma functionalised Multi–Walled Carbon Nanotubes (MWCNT) were used to prepare gas sensors that can operate at room temperature. Alumina substrates with interdigitated gold electrodes were employed as transducers and the air–brushing method was used to coat them with carbon nanotube film. Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) images of deposited ...


    By Inderscience Publishers

  • Chromium detection in water and soil...

    What is chromium? Chromium is a metal that is widely distributed in the earth’s crust (soil and rocks), air and water. Naturally occurring chromium occurs mainly in the chromium (III) form as chromite ore, which contains oxygen, chromium (III) and other metals such as iron. Chromium (VI) compounds are produced commercially from chromite ore for a wide variety of uses. ...


    By Camlab Limited

  • Detecting Mercury in Water

    Determination of Mercury (Hg) in Water by Hand-Held, Portable Cold Vapor Atomic Fluorescence SpectrometryWater is the most familiar and most abundant compound on Earth, making up 71% of its surface area.[1]It is a vital component for all known forms of life and is the aquatic habitat for thousands of species of microalgae, fish and shellfish. [2] With the presence of running water in our ...


    By Arizona Instrument LLC

  • Changing the Rules with Mass Detection

    How simplified detectors can provide mass data for every analytical run and speed up method development With access to multiple mass spectrometry systems of varying degrees of sophistication, Davy Guillarme (University of Geneva, Switzerland) wasn’t actively looking for new mass detection solutions. Nevertheless, the Waters ACQUITY QDa mass detector caught his eye. Why? Because it opens a ...


    By Waters Corporation

  • Gas Detection Best Practices at Work

    Most work place accidents could be prevented with proper working gas detection equipment. Gas detection is a critical component for safety programs for any environment; it should be given the highest priority and attention to detail to avoid any accidents and unnecessary work place injuries or deaths. Here are some suggestions on how to keep your work environment safe: 1.   Read the gas ...

  • A novel framework for interpretation of data from the fish short‐term reproduction assay (FSTRA) for the detection of endocrine‐disrupting chemicals

    The fish short term reproduction assay (FSTRA) is a key component of the USEPA endocrine disruptor screening program (EDSP), which uses a weight‐of‐evidence analysis based on data from several assays to identify the potential for chemicals to act as agonists or antagonists of the estrogen or androgen receptors (ER, AR), or inhibitors of steriodogenic enzymes. The FSTRA considers a variety of ...


    By John Wiley & Sons, Ltd.

  • Ultra-Pure Proof with Mass Detection

    Before joining the newly formed Reach Separations in February 2012, I spent five years at AstraZeneca in analysis and purification (latterly as group lead in reversed phase and chiral purification). This experience gives me a good perspective of both the needs of “big pharma” and, more recently, the needs of a specialist separation solution provider. My ...


    By Waters Corporation

  • Detection of semi-volatile organic compounds (SVOCs) in surface water, soil, and groundwater in a chemical industrial park in Eastern China

    China is suffering from serious water and soil pollution, especially in the North China Plain. This work investigated semi-volatile organic compounds (SVOCs) in surface water, groundwater and soil within a chemical industrial park in Eastern China, for which the volatile organic compound (VOC) results have been previously reported. A total of 20 samples were collected from the field, and ...


    By IWA Publishing

  • Detection of Low Levels of Organic Species in Seawater

    In this particular experiment, the sensitivity of a Hiden Quadrupole Mass Spectrometer (QMS) to dimethylsulphide was measured Dimethylsulphide (DMS) - chemical formula CH3SCH3- is a naturally produced trace substance, evolved from certain marine micro organisms, such as plankton. Detection of fluctuations in the DMS concentration in seawater therefore gives important information about the ...


    By Hiden Analytical Ltd.

  • Plasmonic colorimetry: visual detection of environmentally relevant species

    Colorimetric detection of chemical species based on specially tailored noble metal nanoparticles is garnering increasing interest in the scientific community. The aggregation/dispersion of unmodified or ligand–functionalised plasmonic nanostructures upon binding to an environmental pollutant results in a colorimetric response, which can be easily discerned with the naked eye. This review ...


    By Inderscience Publishers

  • Characterization of Accidental Chemical Releases

    The 1990 Clean Air Act Amendment (CAAA) section 112 (r) Prevention of Accidental Releases requires the United States Environmental Protection Agency (EPA) to establish measures for owners and operators of facilities processing or handling hazardous materials to prevent accidental releases of regulated substances and other extremely hazardous materials to the air. Additionally, it requires the ...

  • Multifunctional nanoparticles: from the detection of biomolecules to the therapy

    The intense research activities devoted to nanotechnology led to the development of a wide variety of multifunctional nanoparticles. Besides their small size which opens the route to the exploration of living matter at the subcellular scale, the properties of these particles can be accurately tuned by varying the composition, the size, the shape and the chemical composition of the surface. Some ...


    By Inderscience Publishers

  • NOVA Chemicals Case Study

    NOVA Chemicals' Corunna facility in Canada uses SAFER Real-Time for emission monitoring applications. NOVA Chemicals is a worldwide corporation that produces plastics and chemicals with a focus on two product chains: ethylene and polyethylene, and styrene and polystyrene. Its commitment to be a corporate “neighbor of choice” includes providing leadership and resources to support ...


    By SAFER Systems LLC

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you