fluorescence standard Articles

  • Fluorescent lighting case study

    Installed Measures: T5 OSRAM Fluorescent Lighting Refurbishment, New diffusers, New T5 vapour proof fittings, CP Electronics microwave absence & daylight detection, new switching arrangements. History: The Alun and Maes Garmon Schools combined is the largest school in Wales. They had a yearly issue with electricity consumption in that when the darker evenings came in and the colder ...


    By Elite Energy

  • Introduction to Fluorescence for Oil in Water Monitoring

    Fluorescence can be found in many applications throughout our day-to-day routines. Commercially, one of the most obvious uses is in fluorescent lighting. For this, fluorescence is used to emit light from a tube without the use of heat, unlike standard incandescent light bulbs that require a heated element. In this example, fluorescence also contributes to energy conservation efforts. At an ...


    By Arjay Engineering Ltd.

  • Delphi research assessment for popularising Compact Fluorescent Lamps in India

    In continuation of our earlier work on popularising a seemingly perfect illumination technology, i.e. the compact fluorescent lamp (CFL), a Delphi study was undertaken with experts in lighting technology, backed with an intense focus group interaction to settle divergences and discordances noticed earlier, when the authors had recommended an aggressive implementation of the prescription for ...


    By Inderscience Publishers

  • On the suitability of Portable X-Ray Fluorescence Analyzers for rapid screening of toxic

    Abstract X-Ray Fluorescence spectrometry (XRF) has been routinely used for alloy testing, determination of Pb in paint, and determination of Cd in plastic. However, its use to screen for toxic elements in food and medicinal products has been surprisingly limited to date. While XRF is less sensitive than atomic spectrometry methods such as ICP-AES and ICP-MS, it offers a number of significant ...


    By Northern ANI Solutions Ltd.

  • X-Ray Fluorescence-Based Multi-Metal Continuous Emission Monitor

    ABSTRACT: Army demilitarization incinerators will need to comply with the Hazardous Waste Combustor National Emission Standard for Hazardous Air Pollutants that will regulate metals and metal compounds listed under the Clean Air Act Amendments. A large problem for these incinerator operations is limited knowledge of the type and quantity of emitted metals, so that compliance may be determined ...


    By Cooper Environmental

  • Comparison of atomic absorption and fluorescence spectroscopic methods for the routine determination of urinary arsenic

    Objective: Interpretation of urinary arsenic measurements is sometimes difficult because of the absorption of seafood that contains trimethylated arsenic forms (arsenobetaine and arsenocholine). The objective of this study was to develop a rapid and robust technique for the measurement of the sum of inorganic arsenic metabolites. Methods: Measurement of arsenic was performed in urine after ...


    By Springer

  • Comparing Field Portable X-Ray Fluorescence (XRF) To Laboratory Analysis Of Heavy Metals In Soil

    ABSTRACT Field portable x-ray fluorescence (XRF) continues to gain acceptance as a complement to traditional laboratory testing of metal contaminated soil. The quality of data produced by field XRF varies with site conditions, soil composition, and sample preparation. Quality assurance protocols for the field method usually require that a number of field samples be split and sent to a ...

  • Ban the Bulb: Worldwide Shift from Incandescents to Compact Fluorescents Could Close 270 Coal-Fired Power Plants

    BAN THE BULB: Worldwide Shift from Incandescents to Compact Fluorescents Could Close 270 Coal-Fired Power PlantsOn February 20, 2007, Australia announced it would phase out the sale of inefficient incandescent light bulbs by 2010, replacing them with highly efficient compact fluorescent bulbs that use one fourth as much electricity. If the rest of the world joins Australia in this simple step to ...


    By Earth Policy Institute

  • New University of Minnesota study documents mercury vapor emission levels and need for safer packaging, storage and transportation of fluorescent lamps

    Results of a recent study conducted by the University of Minnesota School of Public Health, Division of Environmental Health Sciences suggest that most containers used for storage and transportation of used fluorescent lamps to recycling centers do not provide necessary levels of protection against mercury vapors emitted from broken lamps. The new study, published in the March issue of the ...


    By VaporLok Products, LLC

  • Get the Lead Out - Standards Aid in RoHS Compliance

    RoHS, the seminal European sustainability directive, and others like it challenge manufacturers to eliminate hazardous substances in their products. With RoHS compliance deadlines ongoing through at least the next five years, and more to come from other regions and nations, ASTM Committee F40 is helping companies with testing standards and other resources. The recent introduction of the new Apple ...


    By ASTM International

  • Analysis of Ni-, Fe- and Co-based alloys within a ferrous matrix

    Elemental analysis by X-ray fluorescence (XRF) spectrometry is one of the principal methods of process and quality control in the metals industry. However, the matrix corrections needed and the many reference materials required to ensure high quality results has, until now, been a limitation which has been overcome with a new package comprising a wavelength dispersive XRF (WDXRF) spectrometer, ...


    By PANalytical

  • Cleaning & maintenance magazine

    An analysis of the lighting industry shows a trend away from incandescent bulbs to fluorescent bulbs. Incandescent bulbs use more energy and are more costly and less effective than fluorescent bulbs in the amount of artificial light they produce, as fluorescents produce more lumens than incandescents. Using fluorescent bulbs, however, is not entirely without risk because they contain mercury, a ...


  • EDXRF Analysis of Sulfur and Other Elements in Oil

    The concentrations of sulfur substances in fuel oil, which greatly contribute to air pollution and acid rain, are regulated by law in many countries, and these regulations are becoming stricter with the growing concern about their impact on the environment and the consequences for society. Here, using the easy-to-operate EDX-720 energy dispersive X-ray fluorescence spectrometer, we determined the ...

  • Fast LC-MS-MS Quantitation of N-Methyl Carbamate Pesticides in Food using Bond Elut® Plexa™ and Pursuit® XRs C18

    A fast quantitation method for the analysis of N-Methyl Carbamate pesticide residues in vegetables and grains has been developed with Bond Elut Plexa clean-up, Pursuit XRs C18 columns, and 320 LC-MSMS. High recoveries were obtained for most carbamates screened in all matrices tested at 1 ppb levels. Good linearity of the calibrationcurves was observed for all analytes, over the range from 1 ppb ...


  • Qualitative and Quantitative Analysis of Seafood by EDXRF

    X- ray fluorescence analysis, in addition to its effectiveness in analysis of inorganic materials such as metals and ceramics, is also effective for the detection and quantitative analysis of minerals and heavy metals in foods. Not only can samples be analyzed directly without conducting time-consuming pretreatment, sensitive and accurate measurement is also possible using simple ...

  • Binding interactions of 1‐naphthol with dissolved organic matter of Lake Biwa and treated sewage wastewater: The role of microbial fulvic acid

    The binding interactions of 1‐naphthol with effluent and whole natural dissolved organic matter (DOM) samples were analyzed by using a fluorescence quenching technique. Nonfractionated DOM samples from Lake Biwa (Japan), creek water, treated sewage effluents, and an extracted Lake Biwa fulvic acid (LBFA) standard were used as quenchers and compared at the same 1‐naphthol with DOM organic carbon ...


    By John Wiley & Sons, Ltd.

  • Generation of mt:egfp transgenic zebrafish biosensor for the detection of aquatic zinc and cadmium

    Zebrafish embryo toxicity test has become a popular method for detecting the environmental pollutions. But our research showed that zebrafish embryos exhibited no visible paramorphia, malformation or mortality when exposed to heavy metals in a range above the environmental standard limits, indicating that zebrafish embryo an imprecise model in monitoring environmental heavy metals ...


    By John Wiley & Sons, Ltd.

  • River Survey Bude Cornwall UK case study

    STS were invited by the UK Environment Agency to conduct a survey of a small river running onto one of the bathing beaches at Bude Cornwall. The area is renowned for its clean beaches and is very popular with both families and surfers alike. There were therefore two driving factors behind ensuring that the water discharging to the beach was clean. Firstly that it met the required ...


    By Safe Training Systems Ltd

  • Uptake and toxicity of methylmethacrylate‐based nanoplastic particles in aquatic organisms

    The uptake and toxicity of two poly(methylmethacrylate)‐based plastic nanoparticles (PNPs) with different surface chemistries (medium and hydrophobic) was assessed using aquatic organisms selected for their relevance based on the environmental behaviour of the PNPs. Pure poly(methylmethacrylate) (medium; PMMA PNPs) and poly(methylmethacrylate‐co‐stearylmethacrylate) copolymer (hydrophobic; ...


    By John Wiley & Sons, Ltd.

  • The Comprehensive Potential of LEDs in U.S. Commercial/Industrial Operations

    One of the biggest expenses associated with industrial and commercial operations is energy usage. Almost every type of commercial industry requires energy to function, from simple warehousing and distribution of goods to full on manufacturing and processing plants, and as the cost of energy increases, so too do operating expenses. When we think of the electrical energy consumed by such ...


    By Larson Electronics LLC

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