SOTAX TPW and APW Automated Sample Preparation Work Stations already include robust sample filtration capabilities. However, several sample preparation methods require centrifugation as primary mode for sample clarification, for example in Pharma, Food/Feed, Fine Chemical, and Cosmetics Industries.

There are many cases where the addition of this step will help to solve the challenge of samples that require centrifugation or centrifugation followed by filtration. The new C+ addition is an automated centrifuge module providing enhanced sample clarification capabilities during fully automated sample preparations.

• Lotions, pastes, ointments

• Polymer-heavy tablet formulations

• Hormone formulations

• Food science applications

• Suspensions

TPW and APW workstations automate the most common sample preparation steps:

Barcode identification

Sample weighing

Solvent addition

Dispersion

Filtration / centrifugation

Dilution / reagent addition

Vortex mixing

Vial filling

Online HPLC injection with Empower

Transfer to UV cell

For challenging samples requiring centrifugation or centrifugation followed by filtration, the C+ addition provides enhanced sample clarification capabilities. Two additional modules, a service robot and a high quality Hettich centrifuge, automate the complete sample preparation process.

The Hettich benchtop centrifuge is available as a standalone system or connected to the fully automated sample preparation systems. Combined with the C+, it will elegantly handle the entire centrifuge process including robotic transfer of tubes to and from TPW / APW, automated speed, time and temperature control, and automated tube “balancing” for uneven sample numbers / weight. The C+ can be ordered with all new TPW / APW systems and is an upgradable addition to existing units.