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Market-leading solutions

Product families (100)

Omnis KF Titration

Fully integrated solution for water content determination with volumetric and coulometric Karl Fischer titration.

OMNIS NIR Analyzer

Good vibes in your lab: State-of-the-art near-infrared spectrometer for easier, faster, and more efficient quality control and routine screening.

MIRA XTR

The premier handheld Raman system for safe in-field identification of unknown materials: compact, flexible, smart, and rugged.

Product configurations for any application

Product models (714)

2.1001.0010

OMNIS Titrator without stirrer, without function license

Innovative, modular potentiometric OMNIS Titrator. Thanks to 3S Liquid Adapter technology, handling chemicals is safer than ever before. The titrator can be freely configured with measuring modules and cylinder units and can have a stirrer added as needed. Thanks to various software function licenses, various measuring modes and functionalities are possible. Actuation via PC or local network; Connection option for up to four additional titration or dosing modules for additional applications or auxiliary solutions; Can be supplemented with magnetic stirrer and/or rod stirrer; Various cylinder sizes available: 5, 10, 20 or 50 mL; Liquid Adapter with 3S technology: Safe handling of chemicals and automatic transfer of the reagent dataMeasuring modes and software options:; Endpoint titration: "Basic" function license; Endpoint and equivalence point titration (monotonic/dynamic): "Advanced" function license; Endpoint and equivalence point titration (monotonic/dynamic) with parallel titration: "Professional" function license; Optional licenses for additional measuring, titration, and operating modes (e.g. volumetric Karl Fischer titration, conductometric or thermometric titration, coulometry, determination of the bromine index) ;

2.1008.0010

Eco Titrator

The compact Eco Titrator with integrated magnetic stirrer and touch-sensitive User Interface is ideal for routine analysis. It provides GLP-compliant results with minimum space requirements at all times (approx. DIN A4).Universally compatible with almost all potentiometric titrations, such as, for example, forFood products: Acid content, chloride, Vitamin C, iodine and peroxide number in fats; Water analysis: Carbonate and Ca/Mg hardness, chloride, sulfate, permanganate index; Petrochemistry: Acid/base number, sulfide & mercaptans, chloride, bromine number; Electroplating: Total acid, metal content, chloride; Surfactant analysis: Anionic, cationic and non-ionic surfactants; Photometry with the Optrode: p and m value, metals, water hardness;

2.1012.1010

OMNIS Sample Robot L Pick&Place

OMNIS Sample Robot L with a "Peristaltic" (4-channel) pump module and a Pick&Place module in addition to extensive accessories for the direct transition to fully automatic titration. The system provides space in seven sample racks for 112 sample beakers of 120 mL each.The system can be extended upon request to include up to four peristaltic pumps and three additional Pick&Place modules, thus quadrupling the throughput while at the same time also guaranteeing long and interruption-free operation.

Tried-and-tested applications

Applications (2253)

410000001-C

Choosing the Most Suitable Laser Wavelength For Your Raman Application

Raman instrumentation can use lasers of different laser excitation, giving the same Raman spectrum for a sample. This paper presents the specific strengths and weaknesses that different excitation wavelengths provide, allowing a user to optimize the measurement of different samples by their choice of Raman excitation laser wavelength.

410000002-B

Carbon Black At-line Characterization Using a Portable Raman Spectrometer

In this article portable Raman spectroscopy as an effective tool for at-line characterization of carbon black is presented. Raman spectroscopic analysis can be an effective test to characterize carbon black material, including the structural order.

410000003-A

Portable Raman Spectroscopy for the Study of Polymorphs and Monitoring Polymorphic Transitions

Raman spectroscopy is used for material characterization by analyzing molecular or crystal symmetrical vibrations and rotations that are excited by a laser, and exhibit vibrations specific to the molecular bonds and crystal arrangements in the molecules. Raman technology is a valuable tool in distinguishing different polymorphs. Examples of portable Raman spectroscopy for identification of polymorphs and in monitoring the polymorphic transiton of citric acid and its hydrated form are presented.

Trainings & webinars by experts

Events (3)

10 - 14 Jun

Frankfurt, Germany

The laboratory of the future on display at ACHEMA 2024

Metrohm presents the state-of-the-art in collaborative laboratory robotics: Completely unattended sample preparation and analysis of multiple wet chemistry parameters 24/7!

Jun 19

Pharmaceutical analysis with NIR spectroscopy: faster, easier, and more efficient

This free webinar presents near-infrared spectroscopy as a highly efficient alternative to traditional technologies for the quality control of pharmaceuticals. Application examples will be discussed.

Sep 28

Converting from manual to automatic titration

Free webinar gives best practice guidelines on how to convert from manual to automatic titration. Laboratories can achieve higher accuracy and better reproducibility.

Electrodes

Electrodes (537)

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Columns (155)

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Accessories (2306)

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Software (267)

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Documents (2635)

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Insights (181)

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News (59)

Unmatched support & service

Support & service (80)

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Webinars (75)

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Items (104)

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714 Product models

2.1009.0010
OMNIS Solvent Module
OMNIS Solvent Module for reliable addition of solvent and aspirating off titration vessel content without contact with the reagents. Manual operation or control via OMNIS Software for maximum user-friendliness. Including accessories, solvent and waste bottle.
2.1010.0120
OMNIS Main Module S – WSM
Main module for setting up an OMNIS Sample Robot WSM in size S. This module is equipped with the module and rack plate for up to 2 racks and an OMNIS Workstation Module. It is already equipped with the main lift and a gripper. It must be equipped with sample racks, gripper fingers, and an OMNIS Workstation Module for sample processing in order to use it to set up a functioning Sample Robot. The selection of these components proceeds in accordance with the application.
2.1010.1120
OMNIS Sample Robot S – WSM (1T/2P)
OMNIS Sample Robot S – WSM, equipped with an OMNIS Workstation Module with 2 pumps for cleaning and extraction of the sensors and sample vessels, a workstation, rod stirrers, and extensive accessories for getting started directly with fully automated titration. The system provides space in two sample racks for 32 sample beakers of 120 mL each. This modular system is supplied completely installed and can thus be put into operation in a very short time. The system can also be extended upon request to include 2 additional peristaltic pumps and another workstation, thus doubling the throughput. If additional workstations are required, then the Sample Robot S can be extended to become an L-sized OMNIS Sample Robot, thus enabling samples from 7 racks to be processed in parallel on up to 4 workstations to quadruple the sample throughput.
2.1011.0120
OMNIS Main Module M – WSM
Main module for setting up an OMNIS Sample Robot WSM in size M. This module is equipped with the module and rack plate for up to 5 racks and 4 workstations. It is already equipped with the main lift and a gripper. Sample racks, gripper fingers, and up to 2 OMNIS Workstation Modules for sample processing can also be attached in order to use it to set up a functioning Sample Robot. The selection of these components proceeds in accordance with the application.
2.1012.0120
OMNIS Main Module L – WSM
Main module for setting up an OMNIS Sample Robot WSM in size L. This module is equipped with the module and rack plate for up to 7 racks and 4 workstations. It is already equipped with the main lift and a gripper. Sample racks, gripper fingers, and up to 2 OMNIS Workstation Modules for sample processing can also be attached in order to use it to set up a functioning Sample Robot. The selection of these components proceeds in accordance with the application.
2.1017.1000
OMNIS Oven Module 6 mL
Module for installation in the module plate of the OMNIS Sample Robot Oven. This workstation picks up the 6 mL sample vial and transports it from the handover position into the oven and then back again after the analysis is completed.
2.1018.0010
OMNIS Coulometer without stirrer
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.
2.1018.0020
OMNIS Coulometer with stirrer
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.
2.1019.0010
OMNIS Coulometer Module without stirrer
Coulometer module without magnetic stirrer for connection to an OMNIS Titrator or to an OMNIS Coulometer as enhancement to include a measuring interface.
2.1019.0110
OMNIS Coulometer Module with stirrer
Coulometer module with magnetic stirrer for connection to an OMNIS Titrator or to an OMNIS Coulometer as enhancement to include a measuring interface.

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2253 Applications

AB-018
Simultaneous determination of gold and copper in electroplating baths and/or alloys by potentiometric titration
This Bulletin describes the simultaneous determination of gold and copper by potentiometric titration using an Fe(II) solution as titrant. Fe(II) reduces Au(III) directly to the free metal, whereas Cu(II) does not react. By the addition of fluoride ions the Fe(III) is complexed and a shift of the redox potential is effected. Afterwards, potassium iodide is added, thus reducing the Cu(II) to Cu(I), and the free iodine is again titrated with the Fe(II) solution using a Pt Titrode.Chemical reactions:Au(III) + 3 Fe(II) → Au + 3 Fe(III)2 Cu(II) + 2 I- → 2 Cu(I) + I2I2 + 2 Fe(II) → 2 I- + 2 Fe(III)
AB-025
Coatings on silver electrodes
Ag electrodes are used for the indication of the potentiometric endpoints in precipitation titrations between silver and halide or sulfide ions. A coating on the silver ring may increase the sensitivity of the electrode and can thus reduce the limit of detection. This is why a variety of coated Ag electrodes are commercially available. This bulletin describes how the silver ring of Ag electrodes can be coated with AgCl, AgBr, AgI or Ag2S by electrolysis.
AB-027
Potentiometric titration of chloride and bromide in the presence of each other
If chloride and bromide are present in approximately equal molar concentrations they can be titrated directly with silver nitrate solution after addition of barium acetate. If, however, the molar ratio n(Br-) : n(Cl-) changes from 1 : 1 to 1 : 5, 1 : 10, 5 : 1 or 10 : 1 then greater relative errors must be expected with this method. The Bulletin describes an additional titration method that allows bromide to be determined in the presence of a large excess of chloride. The determination of small chloride concentrations in the presence of a large excess of bromide is not possible by titration.
AB-036
Half wave potentials of metal ions for the determination by polarography
In the following tables, the half-wave potentials or peak potentials of 90 metal ions are listed. The half-wave potentials (listed in volts) are measured at the dropping mercury electrode (DME) at 25 °C unless indicated otherwise.
AB-037
Determination of chromium in iron and steel
Two methods are described for the determination of chromium: a biamperometric titration and a polarographic analysis.
AB-039
Potentiometric determination of nitrating acid
A potentiometric, nonaqueous method is described for analyzing nitrating acid using cyclohexylamine as titrant. Both sulfuric and nitric acid can be determined quantitatively.
AB-040
Determining the pH value of paper
Two electrometric methods for determining the pH value of papers with homogeneous and heterogeneous pH cross-sections are described.
AB-042
Determination of carbonyl compounds by potentiometric titration
Carbonyl compounds (CC) occur in many products, such as bio-oils and fuels, cyclic and acyclic solvents, flavors and mineral oils. Carbonyl compounds can be responsible for the instability of these products during storage or processing. Especially pyrolysis bio-oils are known to cause issues during storage, handling and upgrading. This bulletin describes an aqueous and a non-aqueous analytical titration method for the determination of carbonyl compounds by potentiometric titration.
AB-046
Potentiometric determination of cyanide
The determination of cyanide is very important not only in electroplating baths and when decontaminating wastewater but, due to its high toxicity, also in water samples in general. Concentrations of 0.05 mg/L CN- can already be lethal for fish.This Bulletin describes the determination of cyanide in samples of different concentrations by potentiometric titration.Chemical reactions:2 CN- + Ag+ → [Ag(CN)2]-[Ag(CN)2]- + Ag+ → 2 AgCN
AB-048
Check of Silver, Platinum and Gold electrodes
It is essential to know before starting the sample analysis if the electrode is in a good state or not. A well workingelectrode will increase the quality of your results, as the accuracy and precision will be increased. Furthermore, tedious error tracking can be omitted and no sample is wasted due to a defect or old electrode. There exist several ways how to check metal electrodes, e.g., measurement of redox potentials, potentiometric titration or bivoltammetric titration. This bulletin describes the best methods for the various by Metrohm available metal electrodes.

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267 Software

6.6059.115
MagIC Net Professional 1.x Upgrade to Version 3.x CD: 1 license
Program upgrade from MagIC Net Professional 1.x to MagIC Net Professional 3.x
6.6059.119
MagIC Net Multi 1.x Upgrade to Version 3.x CD: 3 licenses
Program upgrade from MagIC NetMulti 1.x to MagIC Net Multi 3.x.
6.6059.206
MagIC Net 2.x and 3.x Compact Upgrade to Professional: 1 license
Program upgrade from MagIC Net Compact to MagIC Net Professional
6.6059.207
MagIC Net 2.x and 3.x Compact Upgrade to Multi: 3 licenses
Program upgrade from MagIC Net Compact to MagIC Net Multi
6.6059.208
MagIC Net 2.x and 3.x Professional Upgrade to Multi: 3 licenses
Program upgrade from MagIC Net Professional to MagIC Net Multi
6.6059.331
MagIC Net 3.3 Compact CD: 1 license
Professional PC program for controlling one intelligent Compact IC instrument, one detector and one Autosampler, or one 771 Compact Interface. The software permits checks, data acquisition, data evaluation and data monitoring as well as report generation of ion chromatographic analyses.Graphical user interface for routine operations, extensive database programs, method development, configuration, and manual system control; very flexible user management, powerful database operations, extensive data export functions, individually configurable report generator, control and monitoring of all system components and the chromatography results.MagIC Net Compact complies fully with FDA Regulation 21 CFR Part 11 as well as GLP.MagIC Net is available in 16 dialog languages.1 license.
6.6059.332
MagIC Net 3.3 Professional CD: 1 license
Professional PC program for controlling all intelligent Professional IC systems, Compact IC instruments and their peripherals, such as various Autosamplers, 800 Dosino, 771 Compact Interface, etc. The software permits checks, data acquisition, data evaluation, data monitoring, and report generation of ion chromatographic analyses.Graphical user interface for routine operations, extensive database programs, method development, configuration and manual system control; very flexible user management, powerful database operations, extensive data export functions, individually configurable report generator, control and monitoring of all system components and the chromatography results.MagIC Net Professional complies fully with FDA Regulation 21 CFR Part 11 as well as GLP.MagIC Net is available in 16 dialog languages.1 license.
6.6059.333
MagIC Net 3.3 Multi CD: 3 licenses
Professional PC program for controlling all intelligent Professional IC systems, Compact IC instruments and their peripherals, such as various Autosamplers, 800 Dosino, 771 Compact Interface, etc. The software permits checks, data acquisition, data evaluation, data monitoring, and report generation of ion chromatographic analyses.Graphical user interface for routine operations, extensive database programs, method development, configuration, and manual control panel; very flexible user management, efficient database operations, extensive data export functions, individually configurable report generator, control and monitoring of all system components and the chromatography results.MagIC Net Multi complies fully with FDA Regulation 21 CFR Part 11 as well as with GLP.MagIC Net is available in 16 dialog languages.Client/server version with 3 licenses.
6.6059.393
MagIC Net 2.x/3.x Basic Update to MagIC Net 4.x Basic: 1 license
Update from MagIC Net 2.x/3.x Basic to MagIC Net 4.x Basic.
6.6059.394
MagIC Net 2.x/3.x Compact Update to MagIC Net 4.x Compact: 1 license
Update from MagIC Net 2.x/3.x Compact to MagIC Net 4.x Compact.

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537 Electrodes

010
Screen-printed silver electrode (Aux.: C; Ref.: Ag)
Screen-Printed Silver Electrode (Aux.:C; Ref.:Ag). Suitable for working with microvolumes, for decentralized assays or to develop specific sensors
2.854.0010
854 iConnect
The 854 iConnect – Electrode cable and measuring amplifier for intelligent "iTrodes" electrodes (cable length 150 cm).
3500003870
Blank (empty) working electrode 5mm
Empty working electrode for samples with a disk diameter of 5 mm.
3500003880
Copper working electrode 5 mm
Copper working electrode with a disk diameter of 5 mm.
3500003900
Glassy Carbon working electrode 5mm
Glassy Carbon working electrode with a disk diameter of 5 mm.For the 5 mm glassy carbon PTFE sleeve RDE electrode, please use item number 3500003890.
3500003910
Platinum working electrode 5 mm disk
Platinum working electrode with a disk diameter of 5 mm.
3500003930
Carbon steel working electrode 5 mm
Carbon steel working electrode with a disk diameter of 5 mm.
6.00200.300
dUnitrode with Pt1000
Digital, combined pH electrode for OMNIS with integrated Pt1000 temperature sensor. This electrode is particularly suitable for :- pH measurements and titrations in difficult, viscous, or alkaline samples- at elevated temperatures- long-term measurementsThe fixed ground-joint diaphragm is insensitive to contamination.Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.Alternatively: Reference electrolyte for measurements at T>80°C: Idrolyte, storage in Idrolyte.dTrodes can be used on OMNIS Titrators.
6.00201.300
dEcotrode Plus
Digital, combined pH electrode for OMNIS.The electrode is suitable for aqueous acid/base titrations. The fixed ground-joint diaphragm is insensitive to contamination.Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.dTrodes can be used on OMNIS Titrators.
6.00202.300
dAquatrode Plus with Pt1000
Digital, combined pH electrode for OMNIS, with integrated Pt1000 temperature sensor, for pH measurements/titrations in ion-deficient aqueous media (e.g., drinking water, process water). This electrode shows a very short response time in these samples. The fixed ground-joint diaphragm is insensitive to contamination. When c(KCl) = 3 mol/L is used as bridge electrolyte, storage in storage solution is recommended.The bridge electrolyte can be easily replaced with a chloride-free electrolyte (e.g., potassium nitrate c(KNO3) = 1 mol/L (6.2310.010)). Storage in the bridge electrolyte used.dTrodes can be used on OMNIS Titrators.

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181 Insights

Jun 8, 2020
Virus detection using screen-printed electrodes
Apr 16, 2020
What to consider when standardizing titrant
Blog about why titrant standardization is important and how to determine the titer.
Feb 17, 2020
Determining the total sulfite in food and beverages: faster and easier than ever
Fast and easy determination of total sulfite in food and beverages using ion chromatography.
Jun 22, 2020
Trace metal analysis with solid-state electrodes – Part 1
Jul 13, 2020
The role of process automation in an interconnected world – Part 2
Oct 25, 2021
Cyclic voltammetry (CV) – the essential analytical technique for catalyst research
Nov 15, 2021
NIR spectroscopy in the petrochemical and refinery industry: The ASTM compliant tool for QC and product screening – Part 3
Dec 6, 2021
Side reactions in Karl Fischer titration
How to recognize and avoid side reactions in Karl Fischer titration that falsify results.
Jan 10, 2022
USP <645> – simple automated analysis of ultrapure water
Blog post on automated analysis and quality control of ultrapure water used for injections and other medical and pharmaceutical applications.
Jan 24, 2022
NIR spectroscopy in the petrochemical and refinery industry: The ASTM compliant tool for QC and product screening – Part 5
Near-infrared spectroscopy and ASTM. Learn more about method development, method validation, and results validation.

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155 Columns

6.1015.100
Metrosep BP 1 Guard/2.0
The Metrosep BP 1 Guard/2.0 is used to generate a sufficiently high working pressure in the flow path of post-column reagents. They are used in combination with a high-pressure pump for conveying the post-column reagent in the Professional Reactor.
6.1015.200
Metrosep BO3 Trap 1 - 100/4.0
Trap column for the removal of borate contaminants from the eluent. The Metrosep BO3 Trap 1 - 100/4.0 is used mainly in carbohydrate analysis with hydroxide eluents.
6.1015.300
Metrosep CO3 Trap 1 - 100/4.0
Trap column for the removal of carbonate traces in hydroxide eluents.
6.1011.120
Spare filters for RP Guard, 10 pcs.
Do not use for 6.1011.030.
6.1011.130
Spare filter for RP 2 Guard/3.5, 10 pieces
6.1012.000
IC-RP sample preparation cartridge, 50 pieces
For manual sample preparation in ion chromatography: removal of lipophilic components.
6.1012.010
IC-H sample preparation cartridge, 50 pieces
For manual sample preparation in ion chromatography: removal of sample cations
6.1012.020
IC-Ag sample preparation cartridge, 50 pieces
For manual sample preparation in ion chromatography: removal of halides.
6.1012.030
IC-OH sample preparation cartridge, 50 pieces
For manual sample preparation in ion chromatography: removal of anions
6.1012.040
IC-Na sample preparation cartridge, 0.5 mL, 50 pieces
For manual sample preparation in ion chromatography: replacement of sample cations with sodium.

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2306 Accessories

6.7304.010
FAST connector, straight
For connections with the quartz glass tubing
6.7301.160
Manual dosing syringe 100 µL
Manual dosing syringe for manual liquid sample injection
6.7303.200
50 µL syringe with replaceable needle
Replacement syringe for MMS 5000 liquid setup
6.7303.210
100 µL syringe with replaceable needle
Replacement syringe for MMS 5000 liquid setup
6.7303.220
Needles for 50 µL/100 µL syringes, 3 pcs.
Replacement needle for syringe for MMS 5000 liquid setup
6.7301.230
Non-return tubing Combustion IC
Non-return tubing for the protection of the gas box
6.7305.020
Septum perforated for PEEK gas inlet tube
Septum perforated for transfer of the measuring gas via ABD lock.
6.7305.030
PEEK gas inlet tube for GSS/LPG
Flexible tube made of PEEK guided through 6.730.5020 perforated septum.
6.7301.170
O-ring 14 × 4 mm for ABD
Sealing ring for connection between ABD and quartz glass tubing
6.7301.190
Sluice seal for ABD
Seal for the sluice on the Automatic Boat Driver.