902 Titrando – pH STAT Titrator and Synthesis Controller

902 Titrando – pH STAT Titrator and Synthesis Controller
by Metrohm AG
 3.0/5.0 (1 review)

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 t...read more

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Reviews

AVERAGE RATING: 3.0

1 scientist has reviewed this product

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  • 3 out of 5EASE OF USE
  • 4 out of 5AFTER SALES SERVICE
  • 2 out of 5VALUE FOR MONEY

Johannes Lützenkirchen


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KIT-INE
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RATING: 3.0

  • 3 out of 5EASE OF USE
  • 4 out of 5AFTER SALES SERVICE
  • 2 out of 5VALUE FOR MONEY




Review date: 18 Feb 2014

Application Area: Acid-Base Titrations
902 Titrando – pH STAT Titrator and Synthesis Controller

"This is a complex set-up that allows many things, but for our purpose of acid-base titrations it is over dimensioned. A simpler device is not available commercially though, because these kinds of titrations are rather uncommon. We try our best to adapt, but some things are very non-intuitive in the software. One good thing is that routines can be written to get what you want, but it takes some time to get used to that way of thinking. "

Description

 

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.

Application notes and news

Product Overview

902 Titrando – pH STAT Titrator and Synthesis Controller by Metrohm AG
902 Titrando – pH STAT Titrator and Synthesis Controller




  • 3out of 5EASE OF USE
  • 4 out of 5AFTER SALES SERVICE
  • 2 out of 5VALUE FOR MONEY





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