pH Monitoring Articles

  • New ISFET pH meter PCE-ISFET

    The new PCE-ISFET pH meter from PCE Instruments has been designed for food applications. The glass free electrode makes it particularly safe to use in food production as no glass splinters can get into the food if the electrode breaks. Unlike glass pH electrodes, ISFET pH sensors are highly resilient and do not require wet storage. They give reliable results under tough conditions. The PCE-ISFET ...


    By PCE Instruments

  • Effective biosorption of phenol by the thermophilic cyanobacterium Phormidium sp.

    The use of microbial biomass as biosorbent for phenol removal has been extensively studied, but its removal by biosorption by thermophilic cyanobacterium Phormidium sp. has not been investigated to the best of our knowledge. In the present study, some important parameters for biosorption process were optimized, starting with testing the effects of different pH values ranging from 1 to 12, and ...


    By IWA Publishing

  • Tech Tip: SeaFET/SeapHOx pH Pre-conditioning

    The SeaFET/SeapHOx must condition to the deployment environment for at least 48 hours before pH data is considered reliable. The Shallow SeaFET’s external pH sensor must be powered and exposed to the deployment site’s water for 2–5 days before obtaining quality data. You will often see the external pH gradually rise until it meets the internal reference pH within ~0.05 pH after ...

  • pH measurement: Six technical tips

    The pH value is one of the most important and therefore also one of the most frequently measured quantities in analytical chemistry. Sometimes, a simple pH test strip is sufficient for making a rapid check; precise pH meters are, however, required whenever accurate measuring results are needed. Such a pH meter is available in nearly every laboratory and is generally ready for use at a moment's ...


    By Metrohm AG

  • Ivanhoe Industries Xf-970 Antifoam Evaluation With 2% MICRO-90

    SUMMARY 0.25% XFO-970 is recommended to customers as an effective antifoam in 2% Micro-90 without sacrificing detergency, pH, or leaving an oily residue. PURPOSE To determine if XFO-970 is an effective tank-side antifoam additive for a 2% Micro-90 bath. INTRODUCTION Ivanhoe Industries performed tests to determine which of their ...

  • New Guide from METTLER TOLEDO on Increasing pH Sensor Lifetime

    Proper care of pH sensors can dramatically increase their lifetime. A new guide from METTLER TOLEDO explains, step-by-step, how Intelligent Sensor Management (ISM®) technology provides maximum lifetime for pH probes. Urdorf, Switzerland – Over time and through use, pH sensors are affected by their measuring environment and require cleaning, calibrations and adjustments to ensure ...


    By Mettler - Toledo Int. Inc

  • Buy Smarter – what questions should you ask when buying a pH meter?

    When you’re looking to buy a pH meter, whether it’s to start measuring or to replace an existing meter, the range of brands and specifications available is huge. With so many options it can be difficult to know where to start, but taking a little time to choose carefully could save you a lot of time and money overall by making sure the meter you choose is right for ...


    By Camlab Limited

  • 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

  • `Good to Go™ tags´ manage your daily or weekly calibration and safety checks

    Keeping up with safety regulations can be complicated and time-consuming. Having an easy to complete, simple visual guide to carry out safety or calibration checks solves this problem and helps to keep the workplace safe. One glance and you can see the equipment is “Good to ...


    By Camlab Limited

  • 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

  • Estimation of phase inductance profile in a three-phase 6/4 pole switched reluctance machine

    This paper presents a non-linear inductance profile estimation of a Switched Reluctance Machine (SRM) using real-time applicable modelling techniques. The estimation techniques are based on regression analysis and Adaptive Neuro-Fuzzy Inference System (ANFIS). Mathematical models of phase inductance L ( I , θ ) using both the techniques have been ...


    By Inderscience Publishers

  • 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

  • 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.

  • Tomato Processor

    The sample was tested and the initial pH was 5.0. The Floccin G worked at this pH as well as 7.0 pH at a dosage of 1.5 grams/1,000 ml. The water was at 41 degrees F and it required about 2-1/2 minutes of mixing for good floc formation. The water was then poured thru a dewatering paper and the suspended solids of the treated water was less than 20 ...


    By Integrated Engineers Inc.

  • Esterase autodisplay: enzyme engineering and whole-cell activity determination in microplates with ph sensors

    Among the GDSL family of serine esterases/lipases is a group of bacterial enzymes that posses C-terminal extensions involved in outer membrane anchoring or translocation. ApeE from Salmonella enterica serovar Typhimurium, a member of this group, has been expressed in Escherichia coli and was resistant to protease digestion when the protease was ...

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