The workstation offers solids and liquids dispensing and catalyst synthesis by Incipient Wetness Impregnation (IWI) and Excess Liquid Impregnation (ELI).
The workstation working area is divided into two sections. The first section, for incipient wetness impregnation, is equipped with a vortex shaker with space for 24 vials, 24 mm diameter. The second section is, for excess liquid impregnation, is equipped with a vacuum filtration block with space for 24 fritted tubes, 24 mm diameter. The arrangement is flexible and platforms are engineered to be interchangeable to suit the end users needs.
In the first stop, solutions from the stock solution preparation workstation are transferred to the impregnation workstation. These solutions may be used to impregnate
2 x 24 support samples of 1 g each, which are weighed into 2 x 24 vials
2 x 24 support samples of 1 g each, which are weighed into 2 x 24 fritted vials.
In the IWI station, during impregnation, the vortex shaker is switched on to ensure homogeneous distribution of the solutions over the supports.
In the ELI station, solutions are impregnated 4 at a time, after which the excess liquid is removed from each row of 4 sample vials/tubes after a pre-set time using the vacuum facility.
After impregnation and equilibration (IWI) and drying in a flow of air (generated by the vacuum) (ELI), the racks with vials/tubes can be transferred to a drying oven (120 °C).
