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Coulometric Karl Fischer titrators
Coulometric Karl Fischer titrators

Coulometric Karl Fischer titrators

Stand-alone or computer-controlled coulometers for the determination of low water content or moisture content (0.001 to 1%) by coulometric titration.

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Highlights

Coulometric Karl Fischer titrators are ideal to determine low moisture and water contents in liquid, solid, or gaseous samples (0.001 to 1% water content). Our range of coulometers covers any requirements and can be combined with the Karl Fischer oven method for the analysis of difficult samples.

  • Accurate and reliable determination of trace-level water contents in the range of 0.001 to 1 %
  • Various coulometer versions available, e.g., stand-alone or computer-controlled
  • Difficult samples can easily be analyzed with the oven method
  • Compliance with FDA Regulation 21 CFR Part 11 and EudraLex, Volume 4, Annex 11

 

Benefits

Coulometers for every need

Metrohm offers various coulometric titrators to meet your requirements. Contact us to learn more about our coulometers.

Coulometer Features
OMNIS Coulometer
  • High-end coulometric titrator for all your needs
  • Modular concept for maximum flexibility
  • Software control
  • Regulatory compliance (e.g., 21 CFR Part 11)
  • Automation and sample preparation options
  • Automatic sample injection and titration start recognition

Brochure: OMNIS Coulometer and OMNIS Sample Robot Oven (8.000.5475, PDF, 2.8 MB)
Titrando coulometers
  • Software control or via touch-control unit
  • Regulatory compliance (e.g., 21 CFR Part 11)
  • Automation and sample preparation options
  • Automatic sample injection and titration start recognition

Brochure: 851 Titrando / 852 Titrando (8.851.5002, PDF, 889 KB)
Ti-Touch coulometer
  • Compact and stand-alone coulometric titrator
  • All components integrated in one housing
  • Touch-screen operation, precise results, and safe handling
  • Regulatory compliance (21 CFR Part 11)

Brochure: 916 Ti-Touch, 915 KF Ti-Touch, 917 Coulometer (8.916.5004, PDF, 900 KB)
Eco Coulometer
  • Space-saving coulometric titrator
  • Touch-sensitive display
  • Integrated magnetic stirrer

Brochure: Eco Coulometer (8.000.5371, PDF, 740 KB)

Sample preparation and automation for coulometric KF titration

https://metrohm.scene7.com/is/image/metrohm/4205?qlt=85&ts=1768889792035&dpr=off

For difficult samples, e.g., solid samples or samples that do not readily dissolve, you may apply the KF oven method. In this method, the sample is heated in an oven until the water is released, and the water vapor is transferred to the titration vessel for measurement.

We offer both manual ovens and automated sample changers with integrated ovens for increased sample throughput.

More on sample preparation for KF titration

Systems

OMNIS Coulometer without stirrer

OMNIS Coulometer without stirrer

2.1018.0010

OMNIS Coulometer without magnetic stirrer for stand-alone operation or as the heart of an OMNIS titration system. The coulometer can be enhanced with additional titration, dosing or coulometer modules.Coulometry is the ideal method for water content determination in the trace range (10 μg to 10 mg absolute water content) in liquids, solids and gases. In addition, coulometric Karl Fischer titration is an absolute method making titer determination unnecessary.

OMNIS Coulometer with stirrer

OMNIS Coulometer with stirrer

2.1018.0020

OMNIS Coulometer with magnetic stirrer for stand-alone operation or as the heart of an OMNIS titration system. The coulometer can be enhanced with additional titration, dosing or coulometer modules.Coulometry is the ideal method for water content determination in the trace range (10 μg to 10 mg absolute water content) in liquids, solids and gases. In addition, coulometric Karl Fischer titration is an absolute method making titer determination unnecessary.

OMNIS Coulometer Module without stirrer

OMNIS Coulometer Module without stirrer

2.1019.0010

Coulometer module without magnetic stirrer for connection to an OMNIS Titrator or to an OMNIS Coulometer as enhancement to include a measuring interface.

OMNIS Coulometer Module with stirrer

OMNIS Coulometer Module with stirrer

2.1019.0110

Coulometer module with magnetic stirrer for connection to an OMNIS Titrator or to an OMNIS Coulometer as enhancement to include a measuring interface.

Eco Coulometer with generator electrode with diaphragm

Eco Coulometer with generator electrode with diaphragm

2.1028.0010

The Eco Coulometer with integrated magnetic stirrer and touch-sensitive display is ideal for water content determination in the 10 µg to 200 mg absolute water range. Predefined methods enable a smooth and easy instrument start-up. In addition to GLP-compliant printouts on paper or as PDFs, the Eco Coulometer also offers the option of being able to connect balances or send determination data to a PC via PC / LIMS reports. Indicator electrode and generator electrode with diaphragm are included in the scope of delivery.Coulometry is the ideal method for water content determination in the trace range in liquids, solids and gases. In addition, coulometry is an absolute method making titer determination unnecessary. 

Eco Coulometer with generator electrode without diaphragm

Eco Coulometer with generator electrode without diaphragm

2.1028.0110

The Eco Coulometer with integrated magnetic stirrer and touch-sensitive display is ideal for water content determination in the 10 µg to 200 mg absolute water range. Predefined methods enable a smooth and easy instrument start-up. In addition to GLP-compliant printouts on paper or as PDFs, the Eco Coulometer also offers the option of being able to connect balances or send determination data to a PC via PC / LIMS reports. Indicator electrode and generator electrode without diaphragm are included in the scope of delivery.Coulometry is the ideal method for water content determination in the trace range in liquids, solids and gases. In addition, coulometry is an absolute method making titer determination unnecessary.

851 Titrando with generator electrode with diaphragm

851 Titrando with generator electrode with diaphragm

2.851.0010

Coulometer including generator electrode with diaphragm and 801 Magnetic Stirrer.Coulometry is the ideal method for water content determination in liquids, solids, and gases when it comes to water content determination in the trace range (10 µg to 10 mg absolute water). In addition, coulometry is an absolute method and thus no titer determination is necessary.Coulometric titrations are carried out easily and quickly with the 851 Titrando.Recommended measuring range: 10 µg - 200 mg absolute waterFor use with OMNIS Software, tiamo software, or Touch Control unit. Compliance with GMP/GLP and FDA regulations such as 21 CFR Part 11, if required

851 Titrando with generator electrode without diaphragm

851 Titrando with generator electrode without diaphragm

2.851.0110

Coulometer including generator electrode without diaphragm.Coulometry is the ideal method for water content determination in liquids, solids, and gases when it comes to water content determination in the trace range (10 µg to 10 mg absolute water). In addition, coulometry is an absolute method and thus no titer determination is necessary.Coulometric titrations are carried out easily and quickly with the 851 Titrando.Recommended measuring range: 10 µg - 200 mg absolute water.For use with OMNIS Software, tiamo software, or Touch Control unit. Compliance with GMP/GLP and FDA regulations such as 21 CFR Part 11, if required.

852 Titrando with generator electrode with diaphragm

852 Titrando with generator electrode with diaphragm

2.852.0050

Coulometer including generator electrode with diaphragm, 801 Magnetic Stirrer, and complete volumetric titration cell.Coulometry is the ideal method for water content determination in liquids, solids, and gases when it comes to water content determination in the trace range (10 µg to 10 mg absolute water). In addition, coulometry is an absolute method and thus no titer determination is necessary.Recommended coulometry measuring range: 10 µg - 200 mg absolute waterThe 852 Titrando controls not only coulometric, but also volumetric Karl Fischer titration.For use with OMNIS Software, tiamo software, or Touch Control unit. Compliance with GMP/GLP and FDA regulations such as 21 CFR Part 11, if required.

852 Titrando with generator electrode without diaphragm

852 Titrando with generator electrode without diaphragm

2.852.0150

Coulometer including generator electrode without diaphragm and complete volumetric titration cellCoulometry is the ideal method for water content determination in liquids, solids, and gases when it comes to water content determination in the trace range (10 µg to 10 mg absolute water). In addition, coulometry is an absolute method and thus no titer determination is necessary.Recommended coulometry measuring range: 10 µg - 200 mg absolute water.The 852 Titrando controls not only coulometric, but also volumetric Karl Fischer titration.For use with OMNIS Software, tiamo software, or Touch Control unit. Compliance with GMP/GLP and FDA regulations such as 21 CFR Part 11, if required.

Automated coulometric KF titrations

Automated coulometric KF titrations

MATi 04

MATi 4 is a fully automated system for coulometric KF titrations with high sample throughput. Up to 160 samples in 6 mL vials can be placed on the sample rack of the Sample Processor. The sample is pipetted into an external coulometric cell and then titrated there. The system is controlled with the OMNIS software.

917 Coulometer with generator electrode with diaphragm

917 Coulometer with generator electrode with diaphragm

2.917.0010

The 917 Coulometer is a compact titrator for coulometric water determination in accordance with Karl Fischer. ''Reduced to the max'' – operating module, stirrer and pump are integrated in the 917 Coulometer for rapid reagent replacement. This saves a great deal of space on the laboratory table.Recommended measuring range: 10 µg…200 mg absolute waterCoulometry is the ideal method for water content determination in liquids, solids and gases in the trace range. In addition, coulometry is an absolute method and thus no titer determination is necessary.The 917 Coulometer now also fulfills FDA Regulation 21 CFR, Part 11. This means you are always on the safe side when it comes to audits.

917 Coulometer with generator electrode without diaphragm

917 Coulometer with generator electrode without diaphragm

2.917.0110

The 917 Coulometer is a compact titrator for coulometric water determination in accordance with Karl Fischer. ''Reduced to the max'' – operating module, stirrer and pump are integrated in the 917 Coulometer for rapid reagent replacement. This saves a great deal of space on the laboratory table.Recommended measuring range: 10 µg…200 mg absolute waterCoulometry is the ideal method for water content determination in liquids, solids and gases in the trace range. In addition, coulometry is an absolute method and thus no titer determination is necessary.The 917 Coulometer now also fulfills FDA Regulation 21 CFR, Part 11. This means you are always on the safe side when it comes to audits.

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Knowledge hub

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Video

See the OMNIS Coulometer in action

2020/10/12/kft-oven-method/_1
Blog

Difficult samples? Learn more about the oven method!

2020/07/20/faq-kft-part-1/6
Blog

Learn more about Karl Fischer titration in our FAQ blog series

2020/08/17/faq-kft-part-2/_2
Application

Coulometric water content determination according to Karl Fischer

874 USB Oven Sample Processor, 852 Titrando (coulometric cell) and notebook with PC Control screen
Application

Automatic Karl Fischer water content determination with the 874 Oven Sample Processor

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Find applications for KF titration

Coulometric Karl Fischer titrator – FAQs

Explore Metrohm KF titrators
Omnis KF TitrationFully integrated solution for water content determination with volumetric and coulometric Karl Fischer titration.
KF TitrandoVolumetric and coulometric Karl Fischer titrator for accurate determination of any water content, from 0.001 to 100%.
KF Ti-TouchCompact all-in-one volumetric or coulometric Karl Fischer titrator for routine water content determination.
Eco KF TitratorHigh in quality, low in price: Swiss-made, affordable solution for routine volumetric Karl Fischer titration.
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KF Titration Product Guide

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