Electrochemical Monitoring Articles

  • Axetris` laser gas detection module LGD F200 provides affordable H2O measurement - Case study

    Increased CEMS Reliability with Direct Measurement of H2O Axetris' laser gas detection module LGD F200 provides an affordable solution for continuous H20 measurement. Pollutant gases such as S02, NO, CO, HF, HCI and dust are products of combustion that are regulated by national environmental protection agencies. ...


    By Axetris AG

  • Factors affecting the choice of VOC sensor

    VOCs (Volatile Organic Compounds) perform many vital roles as fuels, solvents, cleaners, feedstock, sterilants etc. However, they can be harmful to health and the environment, so it is often necessary to monitor their concentration. By definition, organic compounds contain the element carbon, and exhibit similar chemical properties, which is advantageous from a monitoring perspective. However, ...


    By Alphasense

  • Comparing Performance of Dissolved Oxygen Probes and Examining Payback of the RDO PRO Probe Used to Monitor Aeration Basins

    Introduction Wastewater Treatment Plants (WWTPs) can use reliable dissolved oxygen (DO) data to improve operations, especially with continuous DO monitoring and realtime data acquisition. When DO probes and controllers are connected to blower controls through a SCADA system, the Publicly Owned Treatment Works (POTW) or WWTP will be able to: Optimize sewage treatment ...


    By In-Situ, Inc.

  • CPI Case Study - Safe-OX+ and A50

    The Centre for Process Innovation (CPI) is a UK-based technology innovation centre and the process arm of the High Value Manufacturing, Catapult. CPI enables businesses to develop, prove, prototype and scale up the next generation of products and processes.  CPI operates across a broad range of technologies including; Industrial ...


    By Analox Sensor Technology

  • Application of Lab-on-a-chip Technology in Water Analysis

    The Important of Water Analysis Water analysis is essential to ensure its quality or to detect pollutants that should be removed by water treatment. However, water quality does not mean making the water suitable for human consumption; it depends on its end use. For example, completely different quality standards are applied in case of industrial water compared to those ...


    By Chemyx Inc

  • BUMP TESTING AMMONIA (NH3) SENSORS

    Bump testing a gas sensor involves flowing a concentration of gas that is slightly higher than the Low alarm setpoint of the gas detector for a short period of time (1-2 minutes or less). The purpose of a bump test is to confirm that the sensor responds to the presence of gas, the low alarm will activate and the gas detector overall ...

  • Axetris LGD F200-NH3 successfully integrated and tested at Harper Adams University - Case study

    Researchers at Harper Adams University, Shropshire, United Kingdom, built and tested a multi-channel ammonia monitoring system by integrating the Axetris LGD F200 with the goal of developing a system which would provide substantially higher measurement performance, while being cost-efficient and robust for real-world use. Extensive tests were conducted over the span of multiple years, and the LGD ...


    By Axetris AG

  • AQMesh shown to achieve highest correlation coefficients in new ACS paper

    A new paper published by the American Chemical Society (ACS Sensors) reviews the use of amperometric electrochemical gas sensors for monitoring inorganic gases that affect urban air quality. Written by John Saffell and Ronan Baron of Alphasense, the paper gives a full explanation of how the sensors work, how they have developed and a review of ...


    By AQMesh

  • Automated Titration Analysis Enhances Productivity - White Paper

    Multi-Parameter Analysis and Enhanced Productivity by the Consolidation of Inorganic Wet Chemistry Methods Summary Multi-tasking and time allocations are key components to running an efficient laboratory and decreasing the cost per analysis for pH, conductivity, alkalinity, chloride, fluoride and ammonia.  The cost of analysis has risen over the years while ...


    By MANTECH Inc.

  • Multi-Parameter Analysis and Enhanced Productivity by the Consolidation of Inorganic Wet Chemistry Methods

    Summary Multi-tasking and time allocations are key components to running an efficient laboratory and decreasing the cost per analysis for pH, conductivity, alkalinity, chloride, fluoride and ammonia.  The cost of analysis has risen over the years while revenue from these parameters has remained the same.  Much of the high cost is due to the use of multiple instruments, multiple ...


    By MANTECH Inc.

  • Installation of the fixed gas detection

    OC-F08 fixed gas monitor with the original imported sensor used to detect the Oxygen gas, combustible gas, toxic gas, CO2, etc. With the different working principle, Electrochemical sensor for O2 and toxic gas, Catalytic combustion sensor for combustible gas, PID sensor for the VOC, Infrared sensor for the CO2 ...

  • Fabrication of titanium carburizing electrodes for capacitive deionization

    Titanium carburizing electrodes were used as the electrodes in a capacitive deionization (CDI) process for desalination in this study. Two methods of high vacuum magnetron sputtering and chemical deposition were used for the preparation of nano-titanium carburizing electrodes (named Ti-C* and Ti-C**). By comparing the adsorption capacities of different kinds of electrode material, combined ...


    By IWA Publishing

  • Hydrogen Sulfide Analyzers – Finding the Right Fit for Your Needs

    Monitoring hydrogen sulfide (H2S) levels is critical for air quality, safety and environmental professionals across a multitude of industries. Doing so helps prevent complaints, citations, penalties, corrosion, fires, illness, and even death. ...


    By AMETEK Brookfield

  • Monitoring the purity of nitrogen in cryogenic air separation plants - Case Study

    In the manufacturing of the containerised plants, Linde Cryoplants Ltd utilise the Systech Illinois EC923 trace oxygen analyser to monitor the purity of the nitrogen. With 125 years of experience and expertise in the field of cryogenics, Linde Cryoplants is a leading manufacturer of air separation plants. Their compact Nitrogen and Oxygen generators provide custom-made and standard supply ...


    By Systech Instruments Ltd

  • Instrumentation and Operational Considerations for On-Line pH Measurement in Samples Below 10µS/cm Conductivity

    Ordinarily pH measurements are made in water with 1,000 to 10,000 µS/cm conductivity. The conductivity comes from dissolved solids which are typically salts but also acid or base. These dissolved substances are in the solution in ion form which makes such solutions conducting. With conductivities of 1,000 µS/ cm or more, an ample supply of mobile ions provides pH electrodes with a ...


    By IC Controls Ltd.

  • An electrochemical DNA biosensor for trace amounts of mercury ion quantification

    In this work we report the development of an electrochemical DNA biosensor with high sensitivity for mercury ion detection. A new matrix based on gold nanoparticles (AuNPs)-glutathione (GSH)/cysteine was investigated. The interaction between DNA oligonucleotides and Hg2+ ions followed by the formation of Thymine–Hg2+–Thymine (T–Hg2+–T) structures was quantified using different ...


    By IWA Publishing

  • Arsenic removal from groundwater using low-cost carbon composite electrodes for capacitive deionization

    Affordable carbon composite electrodes were developed to treat low-concentrated groundwater using capacitive deionization (CDI). A carbon slurry prepared using activated carbon powder (ACP), poly(vinylidene fluoride), and N-methyl-2-pyrrolidone was employed as a casting solution to soak in a low-cost porous substrate. The surface morphology of the carbon composite electrodes was investigated ...


    By IWA Publishing

  • Monitoring landfill gas - Case Study

    Infrared absorption Infrared absorption is usually the preferred method for measuring methane and carbon dioxide. Most gases absorb radiation in the infrared region. The wavelength of radiation that is absorbed is determined by the natural vibration frequencies of the molecule. These natural frequencies will depend on several factors. Thus different gas molecules have different natural ...

  • Gas analyzers accelerate business growth - Case study

    Transportable multi-parameter analytical instruments have been key to the growth of an analytical services company based in Elk City, Oklahoma. Great Plains Analytical Services (GAS) operates a fleet of mobile monitoring systems, providing onsite gas analysis for customers across the USA, and Gasmet FTIR analyzers have enabled the company to offer a comprehensive onsite monitoring service. CEO ...


    By Gasmet Technologies Oy

  • New electrochemical sensor for sensitive quantification of copper in river, city, bottled and drinking water samples

    In the present study, a reliable and very sensitive sensor for the determination of ultra-trace of Cu(II) is proposed. Copper was determined by anodic differential pulse stripping voltammetry based on the adsorption collection of the Cu(II) on an encapsulated Schiff base onto multiwalled carbon nanotube paste working electrode. The variation of peak current with pH and several instrumental ...


    By IWA Publishing

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