Dispensette® S Trace Analysis is excellent for dosing ultra-pure acids and bases in chemical trace analysis.
Replace easily the dosing unit in the laboratory, without any tools.
Dispensette® S Trace Analysis
In chemical trace analysis, measuring concentrations in the ppb and ppt range have high demands not only on the reagents used, but also on the laboratory equipment. Ultra-pure acids, bases and hydrogen peroxide, for example, must not be contaminated during dosing. Thanks to its high-quality materials, the Dispensette® S Trace Analysis bottle-top dispenser from BRAND® ensures precise analysis results and thus efficient processes in the trace analysis lab.
The parts which come into contact with media consist of ultra-pure flouropolymers, such as PFA and PTFE, and pure sapphire. Depending on the application, the user selects one of two valve spring versions: platinum-iridium or tantalum – a list of the recommended media/equipment combinations can be found at www.brand.de or in the operating manual. This way the release of trace metals lies in the lower ppb range, or even in the ppt range. This has been tested several times by independent laboratories. The quality of Dispensette S Trace Analysis was evident during use in trace analysis. “All analytical values were below the detection limit of the measurement method,” says Dr. Patrick Jost, product manager at BRAND about a blind value assessment using ICP-MS and ICP-OES. The analysis results and further information with details on equipment preparation are available in a technical note at www.brand.de.
Numerous technical details of the Dispensette S Trace Analysis ensure simple, uncomplicated work. The interior scalloped track helps secure the volume setting, facilitating precise dosing. When the piston seal wears out, users can easily replace the dosing unit themselves without any tools in the laboratory. The new instrument is completely assembled and is delivered with a performance certificate. This way, no initial calibration is required, saving time and money. The search for lost sealing rings is now a thing of the past thanks to new valves without separate seals.
A version with a recirculation valve helps reduce media loss, since the liquid goes back into the bottle during priming and does not have to be discarded. The Dispensette S Trace Analysis bottle-top dispenser with platinum-iridium valve spring is also suitable for dosing hydrofluoric acid.
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