Products & ReviewGeneral Lab

851 Titrando Coulometer

Name: 851 Titrando Coulometer
Rating: 4.73 (26 reviews)

The coulometric Karl Fischer Titration is the method of choice for low level water determinations (10 μg … 10 mg absolute water content) in liquid, solid and gaseous samples. As it is an absolute method a titer determination is not necessary. With the 851 Titrando coulometric titrations are carried out straightforwardly and quickly.

4.7/5.0

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Reviews

Average Rating 4.7

|26Scientists have reviewed this product

Ease of Use

After Sales Service

Value for Money

Write your own review

Save time and effectivity.

Average Rating 5.0

Application Area:

Karl-Fischer determination

Easy to use, fast and accurate.

Review Date: 27 Nov 2023 | Metrohm AG

Basic laboratory instrument

Average Rating 4.7

Application Area:

Pharmaceutical Industry

Easy to use and fast equipment, with high reproducibility. User-friendly repairs and easy to troubleshoot. 100% recommended.

Review Date: 27 Nov 2023 | Metrohm AG

Works perfectly

Average Rating 4.7

Application Area:

Analyze Lyophilisat

Easy to use in daily routine, space saving because it works without PC and high quality for less money in compare with others just having problems with connecting the scale via USB

Review Date: 9 Dec 2022 | Metrohm AG

Great instrument from a great company.

Average Rating 5.0

Application Area:

Pharma

Good instrument with reliable results when kept properly maintained. Instrument is easy to use with straight forward commands and the possibility of tracking the measurements for GMP environment.

Review Date: 7 Dec 2022 | Metrohm AG

Great instrument , every labs should have one

Average Rating 5.0

Application Area:

Analyze water in API samples

It is easy to use , for low water content samples. The data are easily reproducible and the instrument can also be used to determine the water content in solvent samples that are going to be used for anhydrous reactions.

Review Date: 6 Dec 2022 | Metrohm AG

Accurate results

Average Rating 4.3

Application Area:

Used in general chemistry

Good product and value for money.

Review Date: 23 Jul 2022 | Metrohm AG

Great results which will make our life easy!

Average Rating 5.0

Application Area:

Traces of water content in metabolites

The coulometer with oven in our laboratory fulfill the task required to analyze the metabolite samples for water content. The software is user friendly. Tiamo 2.5 full version makes our life easy.

Review Date: 9 Dec 2021 | Metrohm AG

Consistent and accurate results with little maintenance problems.

Average Rating 4.3

Application Area:

Routine analysis of pharma samples

Ease of use and method preparation is fairly easy once you understand the program Tiamo. Service personnel are quick to respond and have a good in depth knowledge.

Review Date: 7 Jul 2021 | Metrohm AG

Great results. Cant live without this equipment which is routinely required.

Average Rating 4.7

Application Area:

Wet chemistry

It saves time and cost. The equipment is rugged and we have been using it for 14 years without any major maintenance work undertaken untill today.

Review Date: 12 Dec 2020 | Metrohm AG

Excellent results.

Average Rating 5.0

Application Area:

Karl Fisher

It is a very precise instrument for measuring traces of water in pharmaceutical industry samples, whether they are raw materials, controls in process or finished products. Repeatability and precision in ppm q content is very important in our business. It is also easy to use!

Review Date: 9 Dec 2020 | Metrohm AG

Application NoteGeneral Lab

Moisture in petroleum products according to ASTM D6304

In this white paper, Metrohm explains the easy determination of moisture in petroleum samples by coulometric Karl Fischer titration according to the three procedures outlined in ASTM Method D6304. A comparison is given between the procedures to determine which is most suitable for different sample types.

17 Dec 2021

Application NoteGeneral Lab

Sample Preparation with the Oven Technique - Relative Blank

This application note describes water content determinations in oil using direct injection and oven technique. Results illustrate the influence and the importance of the relative blank.

21 May 2013

Video

Bio-Material Quality Control: Renata de Fonseca Scott, Bayer

Renata de Fonseca Scott discusses the work performed by her team working on the chemical analysis and quality assurance of raw materials used by Bayer. Hear how the team at Bayer conduct chemical analysis and quality assurance, of up to 500 different materials, and learn about the challenges for scientists working directly with a busy factory floor.

18 Nov 2013

Expert InsightsGeneral Lab

Volumetric titration: A step-by-step guide to correct results

Watch this on-demand webinar to uncover top tips to ensure your titration results are always precise and reproducible

19 Nov 2021

Expert InsightsGeneral Lab

Free Webinar - Understanding the Basics of Karl Fischer Titration

9 Oct 2016

Product NewsGeneral Lab

Water in Various Gases – Fully Automated Determination by Coulometric Karl Fischer Titration

4 Oct 2015

Product NewsGeneral Lab

The New 851 and 852 Titrando – Straightforward Determination of Water Content and Bromine Index

17 Aug 2010

Product Overview

851 Titrando Coulometer

Metrohm AG

4.7/5.0

|26 Reviews

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Metrohm AG Manufacturer Website

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901 Titrando for Karl Fischer Titration
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901 Titrando - The Karl Fischer Titrando for the modern titration laboratory Thanks to its modular concept the Titrando System can be optimally adapted to any application. It meets the requirements of FDA Regulation 21 CFR Part 11. Profit from its intelligence and multiple communication options (USB, RS 232C, Remote)!In addition to the Karl Fischer mode (KFT), this high-end titrator also includes the SET mode, which means that titrations can be carried out to a predefined endpoint. "ITrode ready": The high-resolution, galvanically separated measuring interface - now also with additional digital measuring input for intelligent electrodes «iTrodes» - means that it is also possible to make high-precision pH measurements Transparent operation – thanks to specially adapted dialogs, the Titrando accelerates method development and simplifies routine operation. The large color screen of the Touch Control informs you about the instrument condition and offers uniquely comfortable operator guidance. For operation via a PC the appearance is exactly the same. Numerous worked-out methods and titration examples make familiarization easier. Method templates and calculation formula templates are available for developing your own methods. Extended titration and evaluation parameters open up new applications. More intelligence: The Data Chip of the Dosing Unit contains all important titrant data. Thanks to the sophisticated Liquid Handling, automatic reagent exchange is now also possible in volumetric KF titration. The 901 Titrando works with Dosing Units, which are ideal for handling KF reagents. Parallel titration – a Titrando can work with two titration cells at the same time (requires tiamo).
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902 Titrando – pH STAT Titrator and Synthesis Controller
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The 902 Titrando expands the Titrando system by adding the modes pH STAT titration and controlled dosing. STAT titration The determination of the activity of an enzyme or the monitoring of the release kinetics of antacid drugs requires a titrator that rapidly adjusts a predefined pH value and keeps it constant over a long time period. The 902 Titrando's controller has been optimized for this task and is among the best available on the market. Tandem dosing is a new feature offered by the 902 Titrando. To avoid a break in dosing when the buret is refilled, a second buret takes over the dosing operation without any interruption. This means that fast reactions and those that have a high reagent consumption can be monitored without any loss of accuracy.Controlled dosing The tasks to be performed in the synthesis laboratory differ from those in titration. Typical synthesis work involves maintaining constant a pH value or performing a multiple dosing operation under strictly defined conditions: A preset volume has to be added to a solution during a given time span. During the controlled dosing procedure, the parameters pH (or potential) and temperature are continuously monitored and registered. This results in a complete documentation of the synthesis sequence. Dosing can also be carried out continuously in the tandem mode with two Dosinos. Compatible with all existing sensors Despite its new digital measuring interface and intelligent sensors, the Titrando with combined analogue and digital measuring amplifier also supports conventional sensors. This consists of one high-impedance and one polarised measuring input, a separate reference input and an input for a Pt 1000 or NTC temperature sensor. The resolution of the inputs is 0.1 mV or 0.001 pH. Up to two galvanically separated measuring interfaces can be installed. A new feature of the 902 Titrando is its ability to perform control tasks. External instruments can be controlled by means of freely programmable TTL signals or by communication via RS 232 interface. This opens up the possibility of remotely controlling external heating or cooling apparatus, pumps or similar devices.
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859 Titrotherm
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Thermometric titration is a very versatile determination method and an ideal complement to potentiometric titration. In principle it is suitable for any reaction that produces a sufficiently large temperature change in the sample solution. It is particularly suitable for applications for which no suitable potentiometric sensor is available, for which no suitable reference electrode is available, in which the sample affects the indicator electrode or destroys it, for which no solvent is available that is suitable for potentiometry. The 859 Titrotherm combines innovative sensor technology with Metrohm's titration know-how. The temperature sensor based on semiconductor technology (thermistor), has a short response time of 0.3 s and a high resolution of 10-5 K. This makes the Thermoprobe the ideal sensor for thermometric titration, as it can follow any change in temperature quickly and accurately. Metrohm's Dosino technology has defined a new standard for volumetric titration. The Dosing Unit with its drive motor is mounted on the reagent bottle and thus guarantees maximum precision with minimum space requirements. The clearly laid out Titrotherm software allows adaptation of the screen view to the particular method parameters and thus provides rapid access to important commands or parameters. The endpoints are determined by calculating the first and second derivatives of the titration curve; by means of additional optimization parameters, the reproducibility can be improved even further.
(6)
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An easy-to-use, precise and reliable Karl Fischer titrator. The favorably priced 870 KF Titrino plus is Metrohm’s new Karl Fischer titrator for volumetric water determinations. It can be used to determine water contents from a few ppm up to 100% reliably and accurately in solid, liquid and gaseous samples. With its operating interface designed for routine users, the 870 KF Titrino plus is so easy to use that it only requires a short familiarization period. Because of its robustness, it is also the ideal titrator for routine determinations. The advantages of the new 870 KF Titrino plus at a glance: • Straightforward installation • Easy operation thanks to predefined methods • Excellent precision thanks to the high-resolution measuring input • Live curve for recognizing side-reactions • Overflow protection for increased operating safety • Compact USB printer as an option
(49)
869 Compact Sample Changer
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The 869 Compact Sample Changer allows rapid and very easy automation of small sample series. With a total of 12 positions, a variety of titrations can be carried out fully automatically with the electrodes being cleaned or conditioned between determinations. The large and clearly arranged display keeps you updated on the status of the sample series. Urgent samples can be preferentially analyzed at any time. Laboratory space is both scarce and expensive – the footprint of the 869 Compact Sample Changer is similar to that of an analytical balance. The advantages of the 869 Compact Sample Changer at a glance: • Economical automation • Space-saving; 11 sample positions • Different method templates • Easy operation
(0)
860 KF Thermoprep
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Thermal sample preparation in Karl Fischer titration. For various reasons many substances are not suitable for a direct Karl Fischer titration: – They release their water only slowly – The water is released at high temperatures only – The substances are poorly soluble in alcohols – They undergo side reactions with KF reagents – They contaminate the titration cell or the electrodes By using the KF oven method the above-mentioned problems can be avoided. The substance under investigation is heated in a hermetically sealed vial in the oven. The water vapor released is transferred to the titration cell by a carrier gas. This means that no noxious solubilizers have to be used, side reactions as well as matrix effects are absent and the contamination of the titration cell is avoided. Depending on the sample’s water content, the determination can be carried out either by coulometric or volumetric Karl Fischer titration.
(12)
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(11)
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(75)
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Coulometer including generator electrode without diaphragm and complete volumetric titration cell. The coulometric Karl Fischer Titration is the method of choice for low level water determinations (10 μg … 10 mg absolute water content) in liquid, solid and gaseous samples. As it is an absolute method a titer determination is not necessary. With the 852 Titrando coulometric as well as volumetric Karl Fischer titrations are carried out straightforwardly and quickly.
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"Reduce to the max" – this is the principle of the Ti-Touch. The compact titrator offers many features for routine analysis: Maximum system integration Buret, stirrer, dosing system and control module are in a single unit. Plug-and-play All system components are instantly recognized and ready for use. Personalized Touch-screen for fast method start Up to 14 methods can each be linked to a favorite icon on the touchscreen. Methods start at a single touch. Straightforward automation Up to 100 samples can be determined unattended. Incorrect results excluded All system components as well as measured results are monitored. Save and print data – without PC USB interface for printer, USB stick or barcode reader. Direct access to intranet and LIMS – without PC Save methods and results directly in your intranet or LIMS. Paperless PDF reports Generate forge-proof PDF reports and save them on a USB stick or in the intranet. The compact titrator comes in three versions: 916 Salt Ti-Touch 916 Oil Ti-Touch 916 Food Ti-Touch
(39)
Optrode Sensor for Titration
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Sensor for titration with photometric endpoint recognition. Eight wave lengths: 470, 502, 520, 574, 590, 610, 640 and 660 nm 100% solvent-resistant due to glass shaft Compact and space-saving Very easy to clean Easy to change the wave lengths Both new and existing titration systems can be furnished with the optrode. The power supply is provided directly through the USB interface of a Metrohm instrument (Titrino plus, Ti-Touch, Titrando, USB sample changer). With older models without a USB interface, the power supply can also be provided by means of an optional USB power supply unit.
(2)

902 Titrando – pH STAT Titrator and Synthesis Controller

Metrohm AG

The 902 Titrando expands the Titrando system by adding the modes pH STAT titration and controlled dosing. STAT titration The determination of the activity of an enzyme or the monitoring of the release kinetics of antacid drugs requires a titrator that rapidly adjusts a predefined pH value and keeps it constant over a long time period. The 902 Titrando's controller has been optimized for this task and is among the best available on the market. Tandem dosing is a new feature offered by the 902 Titrando. To avoid a break in dosing when the buret is refilled, a second buret takes over the dosing operation without any interruption. This means that fast reactions and those that have a high reagent consumption can be monitored without any loss of accuracy.Controlled dosing The tasks to be performed in the synthesis laboratory differ from those in titration. Typical synthesis work involves maintaining constant a pH value or performing a multiple dosing operation under strictly defined conditions: A preset volume has to be added to a solution during a given time span. During the controlled dosing procedure, the parameters pH (or potential) and temperature are continuously monitored and registered. This results in a complete documentation of the synthesis sequence. Dosing can also be carried out continuously in the tandem mode with two Dosinos. Compatible with all existing sensors Despite its new digital measuring interface and intelligent sensors, the Titrando with combined analogue and digital measuring amplifier also supports conventional sensors. This consists of one high-impedance and one polarised measuring input, a separate reference input and an input for a Pt 1000 or NTC temperature sensor. The resolution of the inputs is 0.1 mV or 0.001 pH. Up to two galvanically separated measuring interfaces can be installed. A new feature of the 902 Titrando is its ability to perform control tasks. External instruments can be controlled by means of freely programmable TTL signals or by communication via RS 232 interface. This opens up the possibility of remotely controlling external heating or cooling apparatus, pumps or similar devices.

(18)

Moisture in petroleum products according to ASTM D6304

Sample Preparation with the Oven Technique - Relative Blank

Bio-Material Quality Control: Renata de Fonseca Scott, Bayer

Volumetric titration: A step-by-step guide to correct results

Free Webinar - Understanding the Basics of Karl Fischer Titration

Water in Various Gases – Fully Automated Determination by Coulometric Karl Fischer Titration

The New 851 and 852 Titrando – Straightforward Determination of Water Content and Bromine Index

Product Overview

851 Titrando Coulometer

Links

Featured products

901 Titrando for Karl Fischer Titration

902 Titrando – pH STAT Titrator and Synthesis Controller

855 Robotic Titrosampler – High-performance titration automation with minimal footprint

859 Titrotherm

870 KF Titrino plus

869 Compact Sample Changer

860 KF Thermoprep

856 Conductivity Module

888 Titrando/ 890 KF Titrando

815 Robotic USB Sample Processor XL

862 Compact Titrosampler

852 Titrando

900 Touch Control – Titration was Never Easier

916 Ti-Touch Compact Titrator for Routine Analysis

Optrode Sensor for Titration

901 Titrando for Karl Fischer Titration

902 Titrando – pH STAT Titrator and Synthesis Controller

855 Robotic Titrosampler – High-performance titration automation with minimal footprint

859 Titrotherm

870 KF Titrino plus

869 Compact Sample Changer

860 KF Thermoprep

856 Conductivity Module

888 Titrando/ 890 KF Titrando

815 Robotic USB Sample Processor XL

862 Compact Titrosampler

852 Titrando

900 Touch Control – Titration was Never Easier

916 Ti-Touch Compact Titrator for Routine Analysis

Optrode Sensor for Titration