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KF Coulometre
KF Coulometre

KF Coulometre

At bestemme lavt fugt- og vandindhold i prøver er ikke et problem for disse coulometre.

FordeleSystemerEkspertviden

Highlights

Coulometrisk Karl Fischer-titrering er den ideelle metode til at bestemme lavt fugt- og vandindhold i prøver (0,001 til 1 % vandindhold). Vores udvalg af coulometre dækker ethvert behov og kan kombineres med KF ovnmetoden til svære prøver.

  • Nøjagtig og pålidelig bestemmelse af sporniveau vandindhold i området fra 0,001 til 1 %
  • Forskellige versioner tilgængelige, fx stand-alone eller computerstyret
  • Vanskelige prøver kan let analyseres med ovnmetode
  • Overholdelse med FDA Regulation 21 CFR Part 11 og EudraLex, bind 4, bilag 11

 

Fordele

En række forskellige coulometre

Metrohm tilbyder forskellige coulometre for at opfylde dine krav. Kontakt os for at høre mere om vores coulometre.

CoulometerFunktioner
Titrando-coulometre
  • Softwarekontrol eller via touch-kontrolenhed
  • Regulativ overholdelse (f.eks. 21 CFR Part 11)
  • Automatisering og prøveforberedelse muligheder
  • Automatisk prøveinjektion og titreringsstartgenkendelse
Ti-Touch coulometer
  • Kompakt og selvstændigt coulometer
  • Alle komponenter integreret i et hus
  • Berøringsskærmbetjening, præcise resultater og sikker håndtering
  • Regulativ overholdelse (21 CFR Part 11)
Eco Coulometer
  • Pladsbesparende coulometer
  • Touch display
  • Integreret magnetomrører 
OMNIS Coulometer
  • High-end coulometrisk titrator til alle dine behov
  • Modulært koncept for maksimal fleksibilitet
  • Software-kontrol
  • Compliance (fx 21 CFR Del 11)
  • Mulighed for automatisering og prøveforberedelse
  • Automatisk prøveindsprøjtning og titreringsstart

Brochure: OMNIS Coulometer and OMNIS Sample Robot Oven (8.000.5475, PDF, 2,8 MB)

 

Prøveforberedelse og automatisering til coulometrisk KF-titrering

KF-ovnmetoden

For vanskelige prøver, f.eks. faste prøver eller prøver, der ikke let opløses, kan du anvende KF-ovnmetoden. I denne metode opvarmes prøven i en ovn indtil vandet frigives, og vanddampen overføres til titreringsbeholderen til måling.

Vi tilbyder både manuelle ovne og automatiske prøveskiftere med integrerede ovne for øget prøvegennemstrømning.

Mere om prøveforberedelse til KF-titrering

Mere om automatisering til KF-titrering

Hvorfor coulometrisk KF-titrering til bestemmelse af vandindhold?

En række standarder anbefaler coulometrisk Karl Fischer-titrering til bestemmelse af vandindhold:

StandardNavn
ASTM D890Standardtestmetode for vand i flydende fyrrekemikalier
ASTM D1123Standardtestmetode for vand i motorkølevæskekoncentrat ved KF-reagensmetoden
ASTM D1533Standardtestmetode for vand i isolerende væsker ved coulometrisk KF-titrering
ASTM D3401Standardtestmetoder for vand i halogenerede organiske opløsningsmidler og deres blandinger
ASTM D4928Standardtestmetode for vand i råolier ved Coulometric Karl Fischer-titrering
ASTM D5460Standardtestmetode for gummiblandingsmaterialer - Vand i gummiadditiver
ASTM D6304Standardtestmetode til bestemmelse af vand i petroleumsprodukter, smøreolier og additiver ved coulometrisk KF-titrering
ASTM D7923Standardtestmetode for vand i ethanol- og kulbrinteblandinger af Karl Fischer Titrering
ASTM E1064Standardtestmetode for vand i organiske væsker af Coulometric Karl Fischer Titratio
DIN EN ISO 12937Petroleumsprodukter - Bestemmelse af vand - Coulometrisk KF-titreringsmetode
ISO 10337Råolie - Bestemmelse af vand - Coulometrisk KF-titreringsmetode
UOP 481-10Vand i flydende kulbrinter og tunge kulbrinter med fordamper ved hjælp af coulometrisk titrering
USP<921> Metode 1c
EP2.5.32 Vand: Mikrobestemmelse

Systemer

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.

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. 

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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Ekspertviden

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Video

See the OMNIS Coulometer in action

Karl Fischer oven method
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Difficult samples? Learn more about the oven method!

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Learn more about Karl Fischer titration in our FAQ blog series

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Coulometric water content determination according to Karl Fischer

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

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Find applikationer til KF-titrering

Coulometric Karl Fischer titrator – FAQs

Udforsk Metrohm KF titratorer
Omnis KF TitreringFuldt integreret løsning til bestemmelse af vandindhold med volumetrisk og coulometrisk Karl Fischer-titrering.
KF TitrandoVolumetrisk og coulometrisk Karl Fischer titrator til nøjagtig bestemmelse af ethvert vandindhold, fra 0,001 til 100%.
KF Ti-TouchKompakt alt-i-en volumetrisk eller coulometrisk Karl Fischer titrator til rutinemæssig vandbestemmelse.
Eco KF TitratorHøj kvalitet, lav pris: Schweizisk fremstillet, prisbillig løsning til rutinemæssig volumetrisk Karl Fischer-titrering.
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Guide til Karl Fischer-titrering

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