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Homogenisation of soil and clay samples in preparation for environmental analysis of poly aromatic hydrocarbons (PAHs). The system had to loosen complex clay samples and allow pre-analytical extraction of PAH’s.


ALcontrol required a special mixing system that could rotate 24 sample tubes in a powerful heated ultrasonic bath. The unit had to allow the samples to be easily placed and removed on a rotisserie inside the ultrasonic tank.

Skills and technology

Our understanding of mixing, heating and ultrasonics, combined with experience in sample preparation, led to the development of a feasibility model followed by a production sample tube rotator within a temperature-controlled ultrasonic bath.

The outcome

The team developed the concept and prepared a detailed proposal. A prototype was constructed, tested and approved, and the system went into production.


Our environmental policy

Our environmental policy

Grant is passionate about being a responsible corporate citizen and committed to protecting the environment. We are doing this, by complying to environmental practices and adhering to legal requirements, while employing continual improvement in our environmental management system (EMS). More information on what we are doing to minimise our environmental impact can be found in our environmental policy.