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How to make sample preparation of semi-solids reliable?

Semi-solids, such as suspensions, creams, lotions, pastes, and gels, can pose problems to analytical method developers and analysts. Automating the required preparation steps with an APW workstation overcomes typical problems of manual preparation and provides full traceability of the entire process.


Semi-solids are often difficult to prepare for analysis. They can be sticky, viscous or unstable, which can make weighing, extraction, filtration, dilution and transfer more difficult. By automating the entire sample preparation process, more reliable, comparable and traceable analytical results can be achieved. In addition, time and resources are saved: the automated method requires only about 30% of the time needed for manual methods and uses only 20% of the solvent.
Would you like to learn more? Click here to read the whitepaper "Automated analysis of suspensions, creams, lotions and gels with SOTAX Assay Workstations" published on our website.


APW – Automated Sample Preparation Workstation

The APW is intended for use testing pure Active Pharmaceutical Ingredients (APIs). It may be used in other situations where smaller solvent volume is required and for diverse applications, including semi-solids.

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Make all steps of your sample preparation 100% traceable.

Fully compliant recording of all sample preparation steps. APWsoft assists users in setting up multiple preparation runs, controls the automated preparation platforms, and protocols & reports all steps taken.

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