chemical monitoring Articles

  • Optimising laboratory environment for successful IVF

    The London Women’s Clinic in Cardiff (LWC Wales) is one of ten clinics within its group which collectively provide expert fertility treatment to families across England and Wales. When it comes to IVF and fertility treatment there is no ‘off-the-shelf’ or ‘one size fits all’ solution and, as such, the medical teams produce a bespoke fertility programme for each and ...


    By Geotech

  • What is a Spectrometer?

    The characteristics of a white LED light differs greatly, when compared to a yellow CFL. Without any special tools, one can see that the LED emits a clear white color, while the CFL generates yellow light. Going one step further, using a spectrometer, one will be able to “dissect” the light sources and see that they are composed of other colors in the visible light spectrum, such as ...


    By Larson Electronics LLC

  • Treatment and Disposal of Air Pollution Control Residue

    What is APCr? Thermal waste management using Energy Recovery Facilities (ERFs) is now a well-managed and mature technology that is subject to environmental monitoring by a range of competent international bodies. These ERFs have been established as a means of diverting waste away from landfill disposal and for valorising the material and energy content of the waste. Counter to historic ...

  • Real-time monitoring for reduced chemical maintenance

    We are pleased to be featured in this month’s American Laundry News digital edition, together with our customer Walter E. Nelson, a janitorial, paper and chemical distributor in the Northwest that provides a wide range of laundry products and equipment. Jerry Roberts, of Walter E. Nelson, explains how he has experienced a significative ...

  • Biomonitoring can measure what chemical monitoring cannot

    Algae and Daphnia (waterfleas) forewarn drinking water sector Biomonitors, instruments which measure the biological effects of different substances on organisms, detect substances which cannot be detected using chemicals anaylsis methods. This is also valid for combinations of substances which are present in the water in large concentrations. A well-functioning monitor is necessary since our ...


    By bbe Moldaenke GmbH

  • Air Pressure Monitoring for a Chemical Fume Hood

    CAS DataLoggers recently provided the pressure and temperature datalogging solution to a manufacturer using a chemical fume hood to protect workers by containing vapors, dusts, gases, and fumes, and then expelling them as air flowed into the hood from the front (open) side of the cabinet and then out via the ducted hood exhaust system. Designed for 2 operators, the fume hood had a Fiberglas ...


    By CAS DATALOGGERS

  • Chemical Corner

    So, you’re well aware of all REACH and CLP regulations and you’ve gone to great lengths to ensure your operations and products are compliant with EU regulation. That’s great news. But in the case of Europe, that’s not where the regulations end. Beyond these requirements, you often have to comply with additional, country-specific rules to import, manufacture or sell ...

  • The Mussel Watch approach and its applicability to global chemical contamination monitoring programmes

    Although the use of biological monitors has become a standard practice in different national and international programmes over the past two decades, there are several complicating factors that need to be taken into account when sampling over large geographical extensions. Species availability, physiological conditions, and climatic variables encountered over large areas of study are a few of the ...


    By Inderscience Publishers

  • Passive samplers for chemical substance monitoring and associated toxicity assessment in water

    The European legislation, and in particular the Water Framework Directive requires the development of cost efficient monitoring tools that can provide the required information for the assessment of water contamination. Passive sampling methods represent one of the novel tools that have a potential to be used in various regulatory monitoring programmes aimed at assessing the levels of chemical ...


    By IWA Publishing

  • Continuous Monitoring of Odorous compounds in WWTP Sensory approach or Physico-chemical solution?

    In WWTP site managers are familiar with odor & chemical profile as they are exclusively focused on sulfur compounds measurement. These molecules are used as process drift indicators and offer a good criteria of process performance. Hydrogen Sulfide (H2S), Methyl Mercaptan (MM), Ethyl Mercaptan (EM), dimethyl sulfur (DMS) or Di-Methyl-di sulfur (DMDS), sulfur dioxide (SO2) provide a better ...


  • Chemical monitoring strategy for the assessment of advanced water treatment plant performance

    A pilot-scale plant was employed to validate the performance of a proposed full-scale advanced water treatment plant (AWTP) in Sydney, Australia. The primary aim of this study was to develop a chemical monitoring program that can demonstrate proper plant operation resulting in the removal of priority chemical constituents in the product water. The feed water quality to the pilot plant was ...


    By IWA Publishing

  • Towards a European Chemicals Information System: a survey on reported monitoring activities of chemicals in Europe

    This report presents the outline and results of a project which collected information on monitoring activities in the 32 EEA member countries. In addition, a framework is proposed on the potential structure of a multi-purpose European chemicals information system where a database on monitoring activities would constitute one element. The system could be used as a tool in support of EU chemicals ...

  • Chemical analysis of fish bile extracts for monitoring endocrine disrupting chemical exposure in water: Bisphenol A, alkylphenols and norethindrone

    This study determined concentrations of estrogenic bisphenol A (BPA), nonylphenol (NP), octylphenol (4‐tert‐OP), butylphenol (4‐tert‐BP) and progestogenic norethindrone (NET) by LC‐MS/MS in bile extracts from field fish in Xin'an River and market fish in Shanghai, China. Compared to the field fish, EDC concentrations in market fish bile were at relatively high levels with high detectable ...


    By John Wiley & Sons, Ltd.

  • Shell Chemicals Canada, LTD

    SHELL CHEMICALS CANADA LTD. , part of one of the largest petrochemical operations in the world, installed the CATSCAN® performance monitoring solution from Pavilion Technologies and CRI Catalyst Company to analyze day-to-day catalyst performance, enhance support, perform 'what-if' scenarios, and manage catalyst decline ...


    By Rockwell Automation, Inc.

  • Dust monitoring

    Generally, two different approaches are used to measure the amount of dust deposited on a surface; Determination of the soiling of a surface, by a change in its properties; Determination of the quantity of dust deposited, by weight. WHAT IS DUST? Dust is a generic term used to describe fine particles that are suspended in the atmosphere. Dust comes from a wide variety of sources, including soil, ...


    By Queensland Laboratory

  • Enhanced LDAR in the chemical industry

    As a result of recent leak detection and repair (LDAR) audits and the associated issues (as described in the Winter 2009 issue of Environmental Quarterly), EPA is initiating enhanced LDAR programs as part of the most recent consent decrees.1 The enhanced LDAR programs for chemical facilities are more stringent than the enhanced LDAR previously required for the petroleum refining industry. ...


    By Trinity Consultants

  • 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

  • Intrinsic Biodegradation Kinetics Of Chemicals

    Intrinsic Biodegradation Kinetics Of Chemicals An understanding of the rate of biodegradation kinetics for specific industrial chemicals is useful when evaluating their treatability or their impact on treatment processes. The objective of kinetic assessments usually is to model the biodegradation reactions for specific chemicals using either pure cultures or defined ...


    By Challenge Technology

  • 10 Reasons why you should continuously monitor low temperature and liquid chemical sterilants for worker safety

    1. Sterilant chemicals are highly toxic Low temperature and liquid chemical sterilants are designed to kill all microorganisms including resistant spores and if they were not toxic, they would not be effective in sufficiently high concentration to destroy all microbial life including the chemically resistant sporicidal forms of certain ...


    By ChemDAQ, Inc.

  • Monitor Sulfur Compounds in Petroleum Chemical, Environmental, and Other Samples, Using a Special-Purpose Capillary GC Column

    Measurement of sulfur compounds is important to petroleum chemical analysts for several reasons, including a need to monitor odor problems and prevent catalyst poisoning.  Quantification of sulfur compounds is also important to environment analysts and to food, beverage and fragrance analysts for similar reasons.  Analyses of sulfur compounds can be complicated by the inability to ...


    By Sigma-Aldrich Co., LLC

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