HORIBA
  • Products
    • Automotive
    • Medical
    • Process and Environmental
    • Scientific
    • Semiconductor
    • Water & Liquid
    • All Products (A-Z)
    • By Industry
      • Arts, Entertainment and Recreation
        • Art Conservation
        • Museums, Historical Sites and Similar Institutions
      • Education, R&D and Government Institutions
        • Universities
        • Research and Testing Laboratories
      • Energy and Environment
        • Battery
        • Coal and Consumable Fuels
        • Electric Utilities
        • Energy Fuel Oil
        • Environmental Countermeasures
        • Oil and Gas
        • Petroleum and Coal Products Manufacturing
      • Food and Beverage
        • Beverages
        • Food
        • Cosmetics
      • Health Care
        • Biotechnology
        • HORIBA In Vitro Diagnostic solutions for human health care
        • Life Sciences
        • Pharmaceuticals and Medicine Manufacturing
      • Industrials
        • Building Products
        • Commercial and Professional Services
        • Electrical Equipment
        • Machinery
      • Information Technology
        • Semiconductor Manufacturing Process
      • Materials
        • Chemicals
        • Chemical Manufacturing
        • Containers and Packaging
        • Nonferrous Metals
        • Nonmetallic Minerals
        • Paper, Forest Products and Manufacturing
        • Plastics and Rubber
        • Primary Metals
      • Mobility and Transportation
        • Automobiles and Components
        • Automotive Manufacturing
        • Other Transportation Equipment Manufacturing
      • Waste Management
        • Solid Waste Management and Remediation Services
        • Water Waste Management and Remediation Services
      • Water
    • By Technique
      • Atomic Spectroscopy
        • Energy Dispersive X-ray Fluorescence (ED-XRF)
        • Glow Discharge Optical Emission Spectrometry (GD-OES)
        • Inductively Coupled Plasma - Optical Emission Spectroscopy (ICP-OES)
        • Inorganic Elemental Analysis
        • Beta-ray Absorption Analyzer
      • Electrochemistry
        • Potentiometry based on Ion-Selective Electrode (ISE)
      • Life Science Techniques
        • Label-free Detection / Surface Plasmon Resonance Imaging (SPRi)
      • Mass Spectrometry
        • Plasma Profiling Time-Of-Flight Mass Spectrometry (PP-TOFMS)
        • Quadrupole Mass Spectrometry
      • Material Characterization
        • Colorimetry
        • Condensation Particle Counter (CPC)
        • Dynamic Light Scattering (DLS) Particle Size Distribution Analysis
        • Magneto-pneumatic Analysis
        • Mechanical Flowmetry
        • Pressure-based Mass Flowmetry
        • Spectroscopic Ellipsometry
        • Static Light Scattering (SLS) / Laser Diffraction Particle Size Distribution Analysis
        • Fluid Measurement and Control
      • Molecular Spectroscopy
        • Absorption and Transmission Spectroscopy (UV, Visible, NIR)
        • Cathodoluminescence (CL, CLUE)
        • Chemiluminescence
        • Fluorescence Spectroscopy
        • Fourier-Transform Infrared Spectroscopy (FTIR)
        • Non-Dispersive Infrared Spectroscopy (NDIR)
        • Non-Dispersive Ultra Violet Spectroscopy (NDUV)
        • Photoluminescence (PL) & Electroluminescence (EL)
        • Quantum Cascade Laser (QCL) Spectroscopy
        • Raman Imaging and Spectroscopy
        • Vacuum Ultra Violet Spectroscopy
      • Radioactivity
        • Crystal Scintillation
      • Surface Science Techniques
        • Plasma Profiling Time-Of-Flight Mass Spectrometry (PP-TOFMS)
        • AFM-Raman (co-localized measurements & TERS)
  • Applications
    • Arts, Entertainment and Recreation
      • Art Conservation
      • Museums, Historical Sites and Similar Institutions
    • Education, R&D and Government Institutions
      • Universities
      • Research and Testing Laboratories
    • Energy and Environment
      • Coal and Consumable Fuels
      • Electric Utilities
      • Energy Fuel Oil
        • Wear metals and additive Elements Analysis.
      • Environmental Countermeasures
      • Petroleum and Coal Products Manufacturing
        • Petrochemicals
      • Photovoltaics
      • Oil and Gas
      • RoHS and ELV
    • Food and Beverage
      • Agriculture & Crop Science
      • Research & Development
      • Beverages
      • Food
      • Food & Beverage Manufacturing
    • Health Care
      • Biochemistry
      • Biotechnology
        • High Throughput Screening of Affimer Proteins using SPRi Label-Free Technology
        • Analytical Chemistry
      • Human Health Care
      • Life Sciences
        • Cell Biology
        • Blood Testing
        • Proteomics
        • Microbiology
        • Structural Biology
        • Genomics
        • Bioengineering
        • Nanoscience
        • Personal Care
      • Pharmaceuticals and Medicine Manufacturing
        • Cosmetics
        • Drug Discovery and Development
        • Drug Delivery
        • Counterfeit
        • Quality Assurance
        • Vacuum Monitoring in Dryer Equipment for Freeze Dry in Pharmaceuticals and Medicine Manufacturing
        • Bioprocessing
        • Analytical Chemistry
    • Industrials
      • Battery
      • Commercial and Professional Services
        • Gas mass flow control and measurement for reference value of PM2.5 measurement
      • Construction & Engineering
      • Electrical Equipment
      • Machinery
    • Information Technology
      • Semiconductors
        • 2D Materials
        • Graphene
        • Photovoltaics
        • Determination of Perovskite Optical Constants
        • Display Technologies
        • Data Storage
        • Nanomaterials
      • Semiconductor Manufacturing Process
      • Technology Hardware and Equipment
    • Materials
      • Ceramics
      • Chemicals
        • Fertilizers, phyo-sanitary
        • Polymers & Plastics
        • Analytical Chemistry
      • Chemical Manufacturing
      • Construction Materials
      • Containers and Packaging
        • Quality control in the aluminium packaging industry
      • Metal Powder
      • Nonferrous Metals
      • Nonmetallic Minerals
        • Glass
        • Coatings
      • Paper, Forest Products and Manufacturing
      • Plastics and Rubber
      • Primary Metals
      • Material Research
        • Corrosion
        • 2D Materials
        • Quantum Dots
        • Carbon based Materials - Graphene
        • Nanomaterials
      • Photovoltaics
      • Forensics
      • Metal and Mining
        • Gemstones
    • Mobility and Transportation
      • Automotive Manufacturing
      • Engine, Turbine and Power Transmission Equipment Manufacturing
      • Real Driving Emissions
      • RDE Plus
    • Waste Management
      • Solid Waste Management and Remediation Services
      • Water Waste Management and Remediation Services
        • Repeatability of Traces and Major Elements in Water
        • Very Rapid Analysis of Supply Water, Sludge From Purification Station and Animal Food
        • Waste Water and Soil Analysis
        • Waste Water Treatment and Disposal
    • Water
  • Technology
    • Measurement and Control Techniques
      • Electrochemistry
        • The Story of pH
        • The Basis of pH
        • Measurement of pH
        • The Story of Ion
        • The Basis of Ion
        • Measurement of Ion
        • The Story of ORP
        • The Basis of ORP
        • Measurement of ORP
        • The Story of Conductivity
        • The Basis of Conductivity
        • Measurement of Conductivity
        • The Story of Salt
        • The Story of Dissolved Oxygen
        • The Basis of DO Measurement
        • LAQUA Electrode Technology
      • Elemental Analysis
        • X-ray Fluorescence Spectroscopy (XRF)
        • Glow Discharge Optical Emission Spectroscopy
        • Inductively Coupled Plasma - Optical Emission Spectroscopy (ICP-OES)
        • Carbon/Sulfur & Oxygen/Nitrogen/Hydrogen Analysis
      • Health Care
        • Multi Distribution Sampling System (MDSS)
        • Reticulocytes Analysis
        • CBC + CRP
        • Slide Production
        • Automatic Rerun
        • Absorbance
        • Fluorescence
        • Flow cytometry
        • Impedance / Resistivity
        • Sedimentation
        • Spectrophotometry
        • Potentiometry
        • INR screening
        • Clotting
        • Turbidimetric
        • Chromogenic
      • Light Scattering
        • Dynamic Light Scattering (DLS) Particle Size Distribution Analysis
        • Molecular Weight
        • Raman Scattering
        • Static Light Scattering (SLS) / Laser Diffraction Particle Size Distribution Analysis
        • Zeta Potential
      • Fluid Control
        • Thermal Mass Flowmetry
      • Mass Spectrometry
        • Quadrupole Mass Spectrometry
      • Microscopy and Imaging
        • AFM-Raman
        • Atomic Force Microscopy [AFM]
        • Cathodoluminescence
        • Image Analysis of Particles
        • Micro-X-ray Fluorescence
      • Physisorption
        • Surface Area
      • Spectroscopy
        • Cathodoluminescence Spectroscopy
        • AFM-Raman
        • Detectors
        • 50 years of Diffraction Gratings
        • Diffraction Gratings Ruled and Holographic
        • Fluorescence Spectroscopy
        • Raman Spectroscopy
        • Spectrometers, Monochromators and Spectrographs
        • Spectroscopic Ellipsometry
        • Vacuum Ultra Violet Spectroscopy
        • X-ray Fluorescence
      • Surface Plasmon Resonance
        • Surface Plasmon Resonance Imaging (SPRi)
  • Service
    • Analysis Services
      • Analysis Centers and Services
      • EMC Analysis Service
    • Calibration and Certification
      • Calibration Centers
    • Customer Support
      • HORIBA Medical Documentation Database
      • Medical Customer Support
      • On-Site Support
      • Software Upgrades
      • STARS Helpdesk
    • Maintenance
      • Dynamometer and Other Overhaul Services
      • Periodic Maintenance
    • Spare Parts and Consumables
    • Testing and Consulting
      • Testing Centers
    • Training
      • Product Training
        • Scientific Product Training
        • Automotive Product Training
        • Medical Product Training
      • Technology Training
        • Raman Training
        • Glow Discharge Training
        • Fluorescence Training
        • Ellipsometry Training
        • SPRi Training
        • Inductively Coupled Plasma Training
        • Inductively Coupled Plasma Training (USA)
        • PSA Training
        • Carbon, Sulfur, Oxygen, Nitrogen and Hydrogen Analyzers Training (USA)
        • Online-OnSite Training
  • Company
    • About HORIBA
      • Message
      • Company Profile
        • Board of Directors
        • Corporate Officers
      • Culture
        • Corporate Philosophy
      • History
        • 1945–1960s
        • 1970s
        • 1980s
        • 1990s
        • 2000s
        • 2010s
      • Technical Journal "Readout"
        • Masao Horiba Awards Research Articles
        • Readout No. E54 - Microplastics and Nanoplastics: Analysis and Method Development
        • Readout No. E53 - 2019 Masao Horiba Awards - Advanced Analytical and Measurement Technologies for Efficient Control System to Maximize the Performance of Electric Power and Batteries Usage
        • Readout No. E52 - Green Innovation for Marine Shipping Industry
        • Readout No. E51 - 2018 Masao Horiba Awards Advanced analytical and measurement technologies in semiconductor manufacturing processes
        • Readout No. E50 - Low-Carbon Society and Environmental Improvement
        • Readout No. E49 - Photonic Instrumentation in Life Science
        • Readout No. E48 - Water Measurement Experts
        • Readout No. E47 - Application for Semiconductor Manufacturing Process
        • Readout No. E46 - New Development for Automotive Test Systems
        • Readout No. E45 - Application Technology in Analysis
        • Readout No. E44 - Contribution of Diagnostics to Total Medical Care/Healthcare
        • Readout No. E43 - Watching the Environmental and Society with Measurements
        • Readout No. E42 - More Efficient Testing on Automotive Development, Improving the Accuracy of Fuel Consumption Measurement
        • Readout No. E41 - Application
        • Readout No. E40 - Application
        • Readout No. E18 - EUROPE
        • Readout No. E17 - AMERICA
        • Readout No. E16 - Chinese (Asia)
        • Readout No. E15 - Technologies for HORIBA STEC
        • Readout No. E14 - Masao HORIBA Awards"Measurement of Bioparticles" and "Measurement of Internal Combustion"
        • Readout No. E13 - Technologies for Automotive Testing
        • Readout No. E12 - Masao Horiba Awards "X-ray Analysis Technology"
        • Readout No. E11 - The Second Masao Horiba Awards
        • Readout No. E10 - Environmental Analysis Technologies for the Management of Global Environment and the Development of Industry
        • Readout No. E09 - The First Dr.Masao Horiba's Award and the 50th Anniversary Products
        • Readout No. E08 - Products and Technologies of HORIBA ABX
        • Readout No. E07 - Products and Technologies of Jobin Yvon HORIBA Group
        • Readout No. E06 - 50th Anniversary of HORIBA, Ltd. Products and Technology of HORIBA Group
        • Readout No. E05 - Semiconductor Instruments
        • Readout No. E04 - Hematology Instruments
        • Readout No. E03 - Paticulate Matter
        • Readout No. E02 - The Technolgy Alliance for X-ray Analysis
        • Readout No. E01 - the Analysis of the Global Environment
      • Virtual Patent Marking
    • Events
    • Career
    • Investor Relations
      • Home
      • Investor Relations News
      • Management Policies
        • Message from the CEO
        • Mid-Long Term Management Plan
        • Corporate Governance
        • Corporate Culture "Joy and Fun"
        • Corporate Philosophy
      • IR Library
        • Financial Statements
        • Presentation Materials
        • HORIBA Report
        • Financial Information
      • Stock Information
        • Basic Stock Information
      • Investor Relations Contact
      • Other IR Information
        • Investor Relations Calendar
        • Disclaimer
    • News
    • Social Responsibility
      • Home
      • Message
      • HORIBA's CSR
        • CSR Policy, CSR Promotion System
        • UN Global Compact
        • HORIBA and the SDGs
      • Environment
        • Policy
        • Environmental Activities
        • Eco-Friendly Products
        • Actions for RoHS Directive, REACH Regulation and GHS Regulations
      • Social
        • Home
        • Integrated Management System
        • Quality
        • Occupational safety and health
        • Promotion of Diversity
        • Material Procurement
        • Social Activities
      • Governance
        • Corporate Governance
        • Code of Ethics
        • Internal Controls
        • Compliance Promotion Systems
        • Risk Management
      • HORIBA Special Contents
      • Library
      • HORIBA Group Social Media
        • Social Media Registered Accounts
        • HORIBA Group Social Media Policy
        • HORIBA Group Terms of Use for Social Media
      • Integrated Report
    • Group Companies
      • Americas
        • Brazil
        • Canada
        • United States
      • Asia
        • China
        • India
        • Indonesia
        • Japan
        • Korea
        • Philippines
        • Singapore
        • Taiwan
        • Thailand
        • Vietnam
      • Europe
        • Austria
        • Belgium
        • Czech Republic
        • France
        • Germany
        • Italy
        • Netherlands
        • Poland
        • Portugal
        • Romania
        • Russia
        • Spain
        • Sweden
        • Turkey
        • United Kingdom
  • Contact
    • Contact Form
    • Worldwide Locations
The Basis of Ion open open
  • What are Ion Electrodes?
  • Applications of Ion electrodes
  • Categorization of Ion electrodes by response membrane
  • Selectivity coefficient
  • HORIBA
    • Products
    • Applications
    • Technology
    • Service
    • Company
    • Contact
    Technology
    • Measurement and Control Techniques
    Measurement and Control Techniques
    • Electrochemistry
    • Elemental Analysis
    • Health Care
    • Light Scattering
    • Fluid Control
    • Mass Spectrometry
    • Microscopy and Imaging
    • Physisorption
    • Spectroscopy
    • Surface Plasmon Resonance
    Electrochemistry
    • The Story of pH
    • The Basis of pH
    • Measurement of pH
    • The Story of Ion
    • The Basis of Ion
    • Measurement of Ion
    • The Story of ORP
    • The Basis of ORP
    • Measurement of ORP
    • The Story of Conductivity
    • The Basis of Conductivity
    • Measurement of Conductivity
    • The Story of Salt
    • The Story of Dissolved Oxygen
    • The Basis of DO Measurement
    • LAQUA Electrode Technology
    The Basis of Ion
    • What are Ion Electrodes?
    • Applications of Ion electrodes
    • Categorization of Ion electrodes by response membrane
    • Selectivity coefficient
    What are Ion Electrodes?

What are Ion Electrodes?

The ion electrode (or, to use the formal term, ion selective electrode) is one that responds to specific ions in an aqueous solution. In this sense, the pH-sensitive glass electrode can be regarded as a hydrogen ion electrode. However, the term “ion electrode,” although referring to an electrode that responds to a particular type of ion, usually excludes the special case of the pH-sensitive glass electrode.

Research on ion electrodes has been actively pursued since the 1960s. From an early stage, HORIBA too has developed and put on sale various types of ion electrodes.

In order to measure the ion concentration of a specific ion, an ion meter—or a pH meter capable of measuring ions—is connected to the relevant specific ion electrode and a reference electrode, and these are immersed in the test solution. The specific ion concentration in the test solution is obtained by measuring the electromotive force between the two electrodes. In order to compensate for sensitivity (i.e. to determine the calibration curve), this method requires two types of reference solutions that have different concentrations of the specific ion. Just as with the pH-sensitive glass electrode, the sensitivity of ion electrodes is also affected by the difference in temperature, so measurement has to be carried out at a single constant temperature (25°C for example).

An ion electrode responds not only to the specific ion of interest, but also to other ions which have characteristics similar to those of that ion. The selectivity coefficient is a measure of this effect, i.e. that by which an electrode responds to types of ions other than the type of interest.

Response membranes for ion electrodes include glass membranes (for Na+ electrodes), silver-salt based solid state membranes (for the corresponding CN-, Cl-, S2-, I-, Br-, SCN-, Cu2+, Cd2+, Pb2+, or Ag+ electrode), single crystal membranes (for F- electrodes), liquid membranes and plastic solidification membranes (for No3-, K+, Na+, and Ca2+ electrodes), and diaphragm (for ammonia electrodes).


Next page  Applications of Ion electrodes

Index

  • The Story of pH
  • The Story of ORP
  • The Story of Conductivity
  • The Story of Ion
  • The Story of Salt
  • The Story of Dissolved Oxygen
  • The Basis of pH
  • The Basis of Conductivity
  • The Basis of Ion
  • The Basis of ORP
  • The Basis of DO Measurement
  • Measurement of pH
  • Measurement of Conductivity
  • Measurement of Ion
  • Measurement of ORP
  • Products
    • By Products (A-Z)
    • Automotive
    • Medical
    • Process and Environment
    • Scientific
    • Semiconductor
  • Applications
    • Automotive Manufacturing
    • Semiconductor Manufacturing Process
    • Research and Testing Laboratories
  • Technology
    • Glow Discharge Spectroscopy
    • Pressure-based Flowmetry
    • Quadrupole Mass Spectrometry
    • Raman Spectroscopy
  • Service
    • On-Site Support
    • Spare Parts and Consumables
  • Company
    • News
    • Events
    • Career
    • History
    • Corporate Culture
  • Contact
    • Contact Form
    • Worldwide Locations

Terms and Conditions Privacy Notice Cookies Imprint