The through-hole platforms are frequently used with O-rings or membranes integrated in an
instrument in order to give a proper sealing via press fittings. They are also a good interface for pipettes.
One additional advantage of this interface besides the ease of application is the potential storage of the
chips after use, as the interfaces can be sealed with tape to prevent contamination or evaporation. A
drawback of this kind of interface is the low pressure stability on the chip-side of the connection, which
has to be countered with a suitable counterpart on the instrument side. Standard diameter for the
through-holes is 0.8 mm (top) and 0.5 mm (bottom); other diameters are available upon request.