ph electrode Articles

  • pH Electrode Architecture

    A pH Electrode can be compared to a battery in that an electrical voltage is generated between two points that is a function of water chemistry. In the case of a pH electrode the voltage potential is a function of the acidity or alkalinity of the solution in which it is immersed. Note: The terms pH electrodes and pH probes are often used synonymously, despite the fact that there are differences. ...


    By Digital Analysis Corp.

  • How should I clean a pH electrode, or revive a damaged electrode?

    Traditional glass pH electrodes are very delicate and need regular care to keep them in good working order. If your electrode has been damaged by exposure to incompatible chemicals such as proteins, heavy metals or sulphides, you may be able to clean and revive it using specialized cleaning solutions… pH electrodes that have a single junction are particularly susceptible to damage, and can ...


    By Camlab Limited

  • Effect of pH and distance between electrodes on the performance of a sediment microbial fuel cell

    The performance of three sediment microbial fuel cells (SMFCs) was evaluated at different feed water pH and electrode spacing for chemical oxygen demand (COD) removal, total nitrogen (TN) removal, and power density; while offering in situ remediation of aquaculture pond water. SMFC-A was operated at the feed water pH of 6.5 and spacing between the electrodes of 100 cm. SMFC-B and SMFC-C were ...


    By IWA Publishing

  • Application of a flat surface ph electrode to demonstrate the effect of lime addition point relocation on mixing quality and ph decay of lime stabilized biosolids

     ABSTRACT Uniform lime incorporation into sewage sludge is critical for biosolids lime stabilization processes. There is no Class B biosolids regulation for lime incorporation. The slurry method is currently used to evaluate the pH of limed biosolids, but this method homogenizes the biosolids and potentially masks poor lime mixing. In this study, a flat surface pH electrode was used in ...

  • Measure pH, conductivity, oxygen with HQD

    After just a short time, the HQD digital electrochemical measuring system has already established itself in practice. Both in the laboratory, with standard electrodes, and in the field, with rugged outdoor electrodes.  On the following pages, users describe their experience with the HQD system. Their experiences show that the system covers a wide range of applications, including direct ...


  • Cycle chemistry pH measurement

    pH measurement in high purity water has met with variable success. The high resistivity of pure water, the vulnerability to contamination, the variability of reference electrodes and additional temperature effects converge to make tins a particularly challenging measurement. Overcoming these obstacles requires a thorough understanding of the potential problems and their systematic solution. ...


    By SnowPure Water Technologies

  • pH Probe Maintenance

    The success or failure of pH measurement depends on the proper application of the probe and proper subsequent maintenance of the probe. The procedures described within apply to the most common pH probe in use today and that is the flat surface combination pH probe. The most common failure mode associated with pH probes is breakage. The pH electrode is a very thin glass membrane that is easily ...


    By Digital Analysis Corp.

  • Large scale diamond electrodes for industrial water treatment

    The DiaCell® technology, based on boron-doped diamond films on Silicon substrate (BDD/Si), is a new candidate in the electrochemical water treatment market. Water disinfection and also wastewater treatment and recycling are the main targeted applications [1]. While most of the private applications such as pool water disinfection [2] require electrode surfaces in the range of 0.1 m2 per unit, the ...


  • Peroxodisulfate measurement using boron-doped-diamond electrodes

    Peroxodisulfates are strong oxidizing species with various ap-plications. Among others two particularly interesting applica-tions of these compounds are, on one hand, their use as the efficient oxidizing reagent for chemical synthesis, and on the other hand their capacity to act as a non-halogenated agent for water disinfection, e.g. in swimming pools [1]. For these ap-plications, as well as for ...


  • Reliable pH measurement in Oily applications

    pH measurement in the petrochemical industry is frequently extremely difficult. Operating in high temperatures with highly reactive contaminants traditional pH reference electrodes can, in some applications, last only days. IC Controls 613 sensors reference is designed for difficult applications particularly where fouling or poisoning conditions exist. The reference uses a highly stable ...


    By IC Controls Ltd.

  • Photoelectrochemical degradation of methyl orange by TiO2 nanopore arrays electrode and its comparison with TiO2 nanotube arrays electrode

    Highly ordered TiO2 nanopore arrays (TNPs) electrode was applied as an electrode material for photoelectrochemical (PEC) degradation of methylic orange (MO). As a comparison, the self-organized TiO2 nanotube arrays (TNAs) electrode about 500 nm in length was fabricated by Ti anodization in 0.5 wt% HF-H2O solution. The COD removal rate and color removal rate for PEC degradation of MO using the ...


    By IWA Publishing

  • pH/ORP Sensors for Metallurgical Applications

    Importance of pH Measurement Hydrometallurgical concentrating and refining applications require pH/ORP sensors to withstand aggressive environments while maintaining accurate measurement. Processes such as cyanide leaching (e.g gold) and solvent extraction (e.g. copper, nickel, zinc) require pH and ORP to be at very specific values to yield the desired chemical species. pH may need ...


    By IC Controls Ltd.

  • Hydrogen ion sensing characteristics of IGZO/Si electrode in EGFET

    In–Ga–Zn–O (IGZO) was widely applied in the substrate of TFT to replace α–Si in recent years. In this study, IGZO layer with thickness of 70 nm is firstly proposed as a pH–sensing membrane directly deposited on P–type Si substrate acting as an extended gate of conventional extended–gate field–effect transistor (EGFET). Post–deposition rapid thermal anneal (RTA) was performed to improve pH sensing ...


    By Inderscience Publishers

  • Get the scoop on the newest technology for the measurement of pH

    SENTRON had its 20th birthday in April 2005 and is world wide known as the manufacturer of glass free ISFET (Ion Sensitive Field Effect Transistor) pH systems. During the 20 years we developed and manufactured not only ISFET pH sensors but also pressure sensors in our own silicon chip production facility. This facility for development and manufacturing of solid-state sensors, enables us to ...


    By Sentron Europe BV

  • Investigations on different positions of electrodes and their effects on the distribution of Cr at the water sediment interface

    Abstract: In most mining areas, significant concentrations of metals such as Pb, Cu, Cr, Zn, Cd, Fe, Mn, Co, Ni, Hg, Ar, halogenated organic compounds and radionuclides are found. Of those, Cr is one of the well-known heavy metals that forms toxic species. It is necessary to study the mobilisation and accumulation of Cr at the sediment water interface in an electric field at varying different ...

  • How can I measure the pH of food?

    Measuring pH in food is a useful indicator of consistency over batches for quality control but can also be used to monitor foods where the pH changes over time – for example in yogurt production, brewing or to test the freshness of foods. Standard pH electrodes will often struggle when used in food samples, as the reference junction becomes blocked the reaction time will get slower and ...


    By Camlab Limited

  • Photoelectrocatalytic activity for water treatment of TiO2/Ti electrodes prepared by anodization

    TiO2 electrodes are made by anodization of Ti at various applied voltages. The increase of voltage facilitates the generation of anatase and rutile at high potential (superior to 140 V). Photoelectrochemical properties of prepared electrodes are investigated with and without methanol. TiO2/Ti electrode obtained at 140 V presents high photoelectrochemical properties. The electrode presents better ...


    By IWA Publishing

  • Pure water pH measurement in low conductivity samples

    Normally, pH measurements are made in water with 1,000 to 10,000 uS/cm conductivity. The conductivity conies from dissolved solids, typically, salts plus net acid or base which explains the exhibited pH. These dissolved substances are in the solution in ion form, which makes such solutions conducting. With 1,000 uS/cm conductivity of mobile ions pH electrodes have a good circuit and give fast, ...


    By IC Controls Ltd.

  • What are the key steps in measuring pH? Why do I need to calibrate?

    pH is a useful parameter which is used across all industries for quality control, environmental monitoring, lab work and much more. There are 10 key steps which should be followed to ensure pH measurements using a meter are accurate. pH is a useful parameter which is used across all industries for quality control, environmental monitoring, lab work and much ...


    By Camlab Limited

  • Treatment of dye solution containing colored index acid yellow 36 by electrocoagulation using iron electrodes

    Abstract The removal of pollutants from effluents by electrocoagulation has become an attractive method in recent years. This paper deals with the batch removal of the reactive textile dye Colored Index (C. I.). Acid yellow 36 from an aqueous medium by the electrocoagulation method using iron electrodes. The effects of electrolyte concentration, initial pH, current density, electrode area, ...

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