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  - OMNIS
    
    New titration system for the modern laboratory: faster analysis, safer chemical handling, new software, more automation.
  - Titrando
    
    High-end potentiometric titrator that meets any requirements: flexible, compliant, customizable, and automatable
    Available product versions
  - Ti-Touch
    
    Compact, easy-to-use potentiometric titrator for a wide range of routine titrations
    Available product versions
  - Titrino plus
    
    Entry-level, versatile potentiometric titrator for basic applications
    Available product versions
- Related products
- Product families
  - KF Titrando
    
    High-end titrators for determining any water content from 0.001 to 100%
    Available product versions
  - KF Ti-Touch
    
    Compact, stand-alone volumetric (> 0.1% water) or coulometric (down to 0.001% water) titrator with integrated touch-screen control unit
    Available product versions
  - KF Titrino plus
    
    Entry-level titrator for coulometric (water content: 0.001 to 1%) or volumetric (up to 100%) water determination
    Available product versions
  - Titrino Coulometer
    
    Basic coulometer for determining low water contents (down to 0.001%)
    Available product versions
  - Gas Analyzer
    
    All-inclusive system for water determination in liquefied and permanent gases
    Available product versions
- Related products
  - KF Electrodes
- Product families
  - 930 Compact IC Flex
    
    Compact ion chromatography system for routine analysis
    Available product versions
  - 940 Professional IC Vario
    
    High-end ion chromatography system for research applications and method development
    Available product versions
- Related products
- Product families
  - 912/913/914 pH/Conductometer
    
    Easy-to-use meters for use in the lab and in the field
    Available product versions
  - 780/781 pH/Ion meter
    
    Advanced pH and ion meters for use in the lab
    Available product versions
  - 867/856 Modules
    
    High-end modules for customized pH, ion, and conductivity measurement
    Available product versions
- Related products
  - Metrohm electrodes
- Product families
  - NIRSystems Laboratory Analyzers
    
    Near-infrared spectroscopy analyzers for routine analysis of chemical and physical properties
    Available product versions
  - Metrohm Instant Raman Analyzers
    
    Handheld spectrometer for quick and easy identification of unknown substances
    Available product versions
- Related products
- Product families
  - Professional VA Instruments
    
    Advanced VA systems with high-performance viva software for determining traces of heavy metals with polarography and voltammetry with high sensitivity
    Available product versions
  - Compact Instruments
    
    Voltammetric trace analysis of metals and other electrochemically active substances
    Available product versions
  - Portable VA Analyzer
    
    Portable voltammetric analyzer for the determination of trace levels of arsenic, mercury, and copper in water
    Available product versions
- Related products
- Product families
  - Professional CVS Instruments
    
    Advanced CVS system with dedicated high-performance software for brightener, suppressor, and leveler determination in the electroplating industry
    Available product versions
  - Compact Instruments
    
    Straightforward CVS system for brightener, suppressor, and leveler determination as well as voltammetric trace analysis
    Available product versions
- Related products
  - CVS electrodes
  - VoltIC systems
- Product families
  - 202X Series – single-method Process Analyzers
    
    Single-method process analyzers for water and wastewater monitoring with titration, pH, ISE, or photometry methods.
    Available product versions
  - Process Ion Chromatograph
    
    Taking high-precision Metrohm ion chromatography to an even higher level of autonomy, the Process IC can connect up to 20 sample streams and provide reliable multicomponent results for superior process control.
    Available product versions
  - 2035 Process Analyzers
    
    Process analyzers available as potentiometric, photometric, and thermometric versions and optional additional pH and conductivity measurement
    Available product versions
  - ADI 204Y – Multifunctional Process Analyzers
    
    Multifunctional process analyzers tailored to your requirements for multiparameter measurements and streams
    Available product versions
  - NIRS XDS Process Analyzers
    
    Multi-channel analyzer for nondestructive real-time spectroscopic analysis
    Available product versions
  - NIRS Process Analyzers Pro
    
    Analyzer for continuous nondestructive analysis by means of contact probes or noncontact measurements above a conveyor belt or through a glass window
    Available product versions
- Related products
  - MARGA air monitoring system
- Product families
  - Portable Line
    
    Compact, PC-controlled portable potentiostat for education and basic applications
    Available product versions
  - Compact Line
    
    High-quality potentiostat/galvanostat instruments with a small footprint
    Available product versions
  - Modular Line
    
    Modular potentiostat/galvanostat instruments for any requirements in electrochemical research
    Available product versions
  - Multichannel Line
    
    Multichannel potentiostat/galvanostat instruments for simultaneous measurements
    Available product versions
  - Spectroelectrochemistry
    
    Integrated solution for combined electrochemical and spectroscopic analysis.
    Available product versions
  - Screen-printed electrodes
    
    Maintenance-free screen-printed and interdigitated electrodes for electrochemical research.
    Available product versions
- Related products
- Product families
  - Rancimat
    
    Instrument for determining the oxidation stability of natural oils and fats
    Available product versions
  - Biodiesel Rancimat
    
    Instrument for determining the oxidation stability of biodiesel and biodiesel blends
    Available product versions
  - PVC Thermomat
    
    Instrument for determining the thermostability of PVC
    Available product versions
- Related products
  - StabNet software
- Product families
  - 846 Dosing Interface
    
    Liquid handling instrument for standalone use or integration into existing Metrohm systems
    Available product versions
  - Dosimat plus
    
    Manually controlled, high-precision instrument for all liquid handling tasks
    Available product versions
- Product families
  - Column Finder
    
    Metrohm offers a comprehensive portfolio of separation, preconcentration, and other columns for ion chromatography
  - Electrode Finder
    
    Find the suitable electrode for your application: titration, IC, pH measurement, VA, CVS, electrochemistry and more.
- Product News
  
  OMNIS - Titration on a whole new level
  New
  The all-new OMNIS platform makes your work in the lab faster, safer, and easier: Up to four parallel titrations, automated titration and sample processing, contact-free reagent exchange, and an intuitive, easy-to-use titration software.
  More information
  
  946 Portable VA Analyzer
  New
  Don't take the sample to the lab – Take the lab to the sample. The 946 Portable VA Analyzer allows you to determine trace levels of arsenic, mercury, and copper in water in the field.
  More information

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Contact

Maintenance of Rotating Disk Electrode

Here you will learn more about the handling of «Rotating Disk Electrodes» – RDE.

FAQs

Can platinum electrode tips be polished

Metrohm does not recommend any mechanical treatment of platinum RDEs, e.g., by polishing with aluminum oxide!
Can Metrohm polish platinum electrode tips?

For logistical and technical reasons, Metrohm cannot offer a polishing service for used platinum electrode tips.
How do I clean my platinum electrode tip?

A contaminated platinum electrode tip can be conditioned in VMS or diluted H₂SO₄.

To clean a contaminated platinum electrode tip, it can be stored for approx. 60 minutes in c(NaOH) = 1 mol/L. Afterwards, the electrode should be well rinsed with isopropanol and deionized water.
The platinum electrode tip may not be treated in an ultrasonic bath.
The electrode surface of the platinum electrode tip is coated with a foreign metal (Cu, Sn, etc.). What can I do?

The platinum electrode tip can be immersed for a few seconds in concentrated nitric acid to oxidize a metal coating which has accidentally been applied. If after another measurement foreign metal should be found on the surface again, then the method parameters and electrode connectors need to be checked.
Can the platinum electrode tip be treated in an ultrasonic bath?

No, the platinum electrode tip may not be treated in an ultrasonic bath. This will irreversibly damage the electrode.