Karl Fischer Titration SAMPLE PREPARATION FOR COULOMETRIC KARL FISCHER TITRATION

Water determination in all types of samples The headspace oven technique allows for the analysis of samples that cannot be measured by direct Karl Fischer titration methods. Advantages of the headspace oven and the sample changer: • Semi or fully automatic water determination • No contamination of the anolyte, generator, and indicator electrodes • Application range from 35 to 280 ˚C The sample is weighed in a small glass vessel with lid and septum then heated in the oven to a defined temperature. A dry air or nitrogen stream flows over a needle through the sample and takes the water with it in...

TO 7280 Headspace Oven and TW 7650 Autosampler The headspace oven technique is suitable for: • • • • • • • • • • Pharmaceutical products Natural products Plastics Hygroscopic substances Freeze dried products, e.g. lyophilisates Oils and lubricants, creams, pastes Viscous materials (bitumen, tar, sewage sludge) Powder and pellets Fo

The TO 7280 headspace oven for semi-automatic measuring The semi automatic headspace oven, TO 7280, is the best choice for low through put laboratories. Advantages of the headspace oven: • Automatic lowering and raising of the needle head • Automatic switching on and off of the air/gas supply • Can be upgraded by the TW 7650 to a fully automatic system with sample changer Why-semi-automatic? The user places the sample in the oven with the crimper and starts the method on the titrator or (optionally) on the TriSoft software. Apart from entering the sample name and initial weight, this is all that...

The TW 7650 autosampler for fully automatic measuring For high through put laboratories, the TW 7640 autosampler is the solution. Advantages of the autosampler: • Up to 49 samples can be measured. One position is reserved for the zero-vial to determine the start drift • The start drift can be determined before each sample • Each sample can be measured at a different temperature The instruments are quick to assemble and ready to use immediately. Power is supplied to the system via the TO 7280 and requires no additional cables or power supply. Simply place the sample vials in the changer and start...

Specifications TitroLine® 7500 KF trace Display 3.5 in -1/4 VGA TFT display with 320 x 240 pixels Number of user methods Measurement range Accuracy coulometric measurements Measurement input dead stop (2 x 4 mm socket) Connector (μA) for double platinum electrodes Balance connection Printer (USB-A) Housing material Front keyboard Polyester coated Housing dimensions Ambient conditions Ambient temperature: + 10 to + 40 °C for operation and storage 2.3 kg for basic unit without magnetic stirrer TM 235 or TM 235 KF TO 7280 Headspace Oven Sample dosing Measuring range Temperature range Power supply...

Ordering information TitroLine 7500˚ KF Trace, TO 7280 Headspace Oven and TW 7650 Sampler Tye No. Module 6, coulometric KF-Titrator, scope of supply: basic titrator unit, generator electrode TZ 1752 without junction, connection cable LB 04 NN, TM 235 TO titration stand, stand rod, titration vessel TZ 1754, micro double platinum electrode KF 1150, connection cable TZ 3094 Module 6, coulometric KF-Titrator, scope of supply: basic titrator unit, generator electrode TZ 1752 without junction, connection cable LB 04 NN, TM 235 TO titration stand, stand rod, titrationv essel TZ 1754, micro double platinum...

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