A perfect sample preparation is the indispensable foundation for any analysis, because any error in sample division will be reflected in the analysis results. Only a subsample representative of the initial sample can assure the reproducibility of the analysis.
Traditional dividing methods such as quartering and coning no longer provide enough accuracy for high-precision. modern analytical instruments. Even the use of eccentric rotating sample dividers is problematic, because if the material segregates on the vibratory feeder, it causes falsified results.
The Fritsch Rotary Cone Sample Divider Laborette 27 offers the ideal conditions: it is the only sample divider on the market dividing your samples with up to 3,000 dividing steps per minutes. Each individual subsample is exactly identical, in terms of chemical and physical properties, with 99.9 % accuracy.
The sample feed funnel of the Laborette 27 guides the sample material centred onto the point of the rotating cone. The rapid rotation of the entire system accelerates the sample material outwards along its surface and divides it through up to 30 guiding channels, into chemically and physically precisely identical subsamples. Your advantage: greatest division precision during sample division for the best possible accuracy and representative samples.
For the division of liquid samples, the funnel is simply repositioned for eccentric division.Dividing heads for every material. Select exactly the right dividing head for your Laborette 27 as an accessory according to your application, in the division ratios of 1:8; 1:10 or 1:30 made of stable POM plastic. Anodised aluminium dividing heads – 1:8 and 1:10 – are available for materials and suspensions with abrasive properties. And for especially aggressive solids and suspensions, the resistant PTFE-coated aluminium dividing head 1:30 is also available.
Special sample delivery funnels for every sample material. Each dividing head of the Laborette 27 is delivered with a funnel of 10 mm diameter, the dividing heads with division ratios of 1:30 are additionally supplied with a 5 mm funnel. There are also funnels of 15 mm and 22 mm diameter for perfect adaptation to the respective particle size available. Special funnels for suspensions are also available.
Glass collecting vessels are available in different sizes, from 15 ml to 500 ml, for up to 4 litres total volume – dishwasher-safe and therefore particularly easy to clean.
The Vibratory Feeder Laborette 24 allows automatic, unattended, operation.