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869 Compact Sample Changer

Name: 869 Compact Sample Changer
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Metrohm AG

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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

Application NoteFood and Beverage

Nicotine Determination in E-Liquids

In this application note, Metrohm presents an affordable and reliable method to determine the nicotine content in e-liquids and their nicotine starting material to help ensure the quality of these products. Non-aqueous acid base titration is a more affordable alternative to the traditional gas or liquid chromatography used for nicotine determination.

24 Apr 2019

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869 Compact Sample Changer

Metrohm AG

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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.

(18)

Nicotine Determination in E-Liquids

Product Overview

869 Compact Sample Changer

Links

Featured products

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