Sample container arrangement
The invention provides a sample container arrangement comprising a carrier for at least one sample container and a tempering module, comprising at least one tempering element and being at least sectionally in contact with the carrier such that the at least one tempering element is suitable to temper the at least one sample container, wherein the sample container arrangement is such that the carrier is kept in contact to the tempering module by negative pressure relative to ambient pressure.
1. A sample container arrangement comprising:
a carrier defining a plurality of sample containers, the carrier being a first disk having a first circular cross-sectional area, and
a tempering module, the tempering module being a second disk having a second circular cross-sectional area that is axially aligned with the first circular cross-sectional area of the carrier, the tempering module comprising a plurality of tempering elements disposed in vertical alignment with each of the plurality of sample containers, the tempering module being in contact with each of the plurality of sample containers of the carrier such that the plurality of tempering elements is configured to cool or heat of the plurality of sample containers,
wherein the tempering module and the carrier defines a cavity therebetween, the cavity being disposed laterally adjacent to each of the plurality of sample containers,
wherein the carrier is configured to rotate with the tempering module,
wherein the the carrier is kept in contact with the tempering module by negative pressure in the cavity relative to ambient pressure external to the sample container arrangement, said negative pressure being maintained even when the carrier rotates with the tempering module,
wherein each of the plurality of sample containers define a first side configured to receive a sample and a second side opposite to the first side, the second side being in contact with the tempering module,
wherein the negative pressure is created by a vacuum pump connected to the cavity through the tempering module.
2. The arrangement according to claim 1 , wherein at least one seal is provided between the carrier and the tempering module.
3. The arrangement according to claim 1 , wherein the tempering module further comprises at least one air connection through which an air line is conducted to connect to the vacuum pump.
4. The arrangement according to claim 1 , wherein the vacuum pump further comprises a valve system for undocking the vacuum pump.
5. The arrangement according to claim 1 , wherein the tempering element of the tempering module comprises at least one Peltier element.
6. The arrangement according to claim 1 , wherein the arrangement further comprises at least one temperature sensor.
7. The arrangement according to claim 1 , wherein the arrangement is configured to rotate with the vacuum pump via sliding contacts.
8. The arrangement according to claim 1 , wherein the tempering module is directly in contact with each of the plurality of sample containers of the carrier.
9. The arrangement according to claim 1 , wherein the tempering module is indirectly in contact with each of the plurality of sample containers of the carrier via a heat conduction medium.
10. The arrangement according to claim 1 , wherein the arrangement further comprises two differential pressure sensors to verify the negative pressure in the cavity relative to the ambient pressure external to the sample container arrangement.