Designed for the determination of Chloride ions, the Sherwood Scientific Chloride Analysers are an instrumental analogue of “Argentimetry”; the traditional titrimetric methods using Silver Nitrate reagent. Like those classic methods, the Sherwood Chloride Analysers rely on formation of the insoluble salt, Silver Chloride. There are two models in the Chloride Analyser range: the M926 for measurement of chloride in mg/l (ppm) and the M926S for chloride measurement in mmol/l. Both units are factory calibrated using primary NIST standard solutions and pipettes whose calibration is checked immediately prior to every calibration.

The M926/M926S method is based on a coulometric titration wherein the reagent (Silver Ions) is precisely and quantitatively generated, at the time of analysis, by passing a constant current between electrodes. The endpoint is determined when excess Silver Ions cause a change in conductivity; detected by the detector electrodes.

Features

• The coulometric method is very robust and versatile.
• Ergonomically designed for ease of use and maintenance.
• The Sherwood Scientific Chloride Analyser Buffer system, specifically designed for the Model 926 and 926S, gives outstanding sensitivity and selectivity.
• A serial printer (473 86 009), which works with both analysers, is available for printing of date and time stamped results.