PIPETTE TIP EXTENSION

The invention refers to a pipette tip extension (1) attachable to a pipette tip (20), the pipette tip extension (1) comprising:- a proximal end (2), a distal end (3), and an exterior wall (4) extending between the proximal end (2) and the distal end (3), the exterior wall (4) having an outer side (5) and an inner side (6) and forming at the proximal end (2) a reception aperture (7) for inserting a pipette tip (14), and at the distal end a dispense aperture (8),- an inner cavity (9) enclosed by the inner side (6) of the exterior wall (4),- one or more distance elements (10) connected to the inner side (6) of the exterior wall (4), the distance element(s) (10) being configured to position a pipette tip (20) within the inner cavity (9) and to establish a fluid uptake area (11) adjacent to the inner side (6) of the exterior wall (4), the fluid uptake area (11) extending from the dispense aperture (8) towards the reception aperture (7) and being in fluid connection with the surrounding atmosphere at the reception aperture (7),the pipette tip extension being configured as an integrally produced workpiece, and being made of a non-polar olefine based polypropylene (PP) composition comprising at least 85% of a heterophasic polypropylene copolymer (h-PP), the latter comprising a propylene random copolymer matrix phase (r-PPM), an elastomeric propylene copolymer (e-PP) dispersed in the matrix, and optionally the PP composition may comprise polyethylene (PE) dispersed in the matrix, whereat the polypropylene composition has a shore hardness D from 45-60.