BRAND Dispensette S Trace Analysis Bottletop Dispensers

from BrandTech Scientific, Inc.

4640040 4640041 4640240 4640241

The Dispensette S Trace Analysis provides outstanding performance for precise-volume dispensing of high-purity media for trace analysis.
- The Dispensette S Trace Analysis is also suitable for dispensing HF (Pt-Ir model).
- The components of the fluid path have been selected to only contain the highest purity materials, such as fluoroplastics and sapphire.
- Depending on application, either platinum-iridium (Pt-Ir) or tantalum (Ta) valve springs can be chosen.
- The volume range is from 1 to 10mL.
Especially well-suited for dispensing acids, bases and hydrogen peroxide (Tantalum (Ta) models only).
Trace metal content of dispensed liquid is generally in the low ppb range or, depending on application, even in the low ppt range.

Plastics in contact with media consist of high-purity materials such as PTFE, ETFE, PCTFE, FEP and PFA.
- The purest sapphire is used for replaceable valves.
- Depending on the application, platinum-iridium or tantalum are available as spring materials.
A field-tested cleaning process before use in trace analysis is described in the operating manual.
Easy to disassemble for replacement of the dispensing cartridge.
The high-purity materials release virtually no metal ions after appropriate cleaning.
- This makes the Dispensette S Trace Analysis bottletop dispenser a superior choice for trace analysis.

If the piston seal is worn after a long period of use, the entire dispensing cartridge can easily be replaced without tools by the user.
The cartridge is fully adjusted at the factory and delivered with a performance certificate.
- No calibration is required after replacement.

For easy serial dispensing, an optional flexible discharge tube with textured safety handle (not approved for HF) permits fast and precise dispensing, even into narrow test tubes.
- Integrated recirculation valve helps purge bubbles before dispensing.

Liquids which form deposits may make the piston difficult to move or may cause jamming (e.g., crystallizing solutions or concentrated alkaline solutions).
When dispensing inflammable media, make sure to avoid the buildup of static charge, (e.g., do not dispense into plastic vessels; do not wipe instruments with a dry cloth).
The Dispensette is designed for general laboratory applications and complies with the relevant standards, e.g., DIN EN ISO 8655. Compatibility of the instrument for a specific application (e.g., trace material analysis, food sector, etc.) must be checked by the user.
- Approvals for specific applications, (e.g., for production and administration of food, pharmaceuticals and cosmetics) are not available.

This instrument is designed for dispensing liquids, observing the following physical limits:
- Use between +15°C and +40°C (59°F and 104°F) of instrument and reagent.
- Vapor pressure up to max. 600mbar. Aspirate slowly above 300mbar, in order to prevent the liquid from boiling.
- Kinematic viscosity up to 500mm2/s (dynamic viscosity [mPas] = kinematic viscosity [mm2/s] x density [g/cm3]).
- Density: Dispensette S Trace Analysis up to 3.8g/cm3.

Never use the Dispensette S Trace Analysis with:
- Liquids attacking Al2O3 sapphire or fluoroplastics like ETFE, FEP, PFA, PCTFE, PTFA and PTFE (e.g., dissolved sodium azide*).
- Liquids which are decomposed catalytically by platinum-iridium (e.g., H2O2) or tantalum, depending on the construction of the instrument.
- Organic solvents.
- Trifluoroacetic acid.
- Explosive liquids (e.g., carbon disulfide).
- Suspensions (e.g., of charcoal) as solid particles may clog or damage the instrument.
- The Dispensette S Trace Analysis must not be autoclaved.