THERMAL CYCLER WITH PROTECTION FROM ATMOSPHERIC MOISTURE

摘要

Localized temperature control in a thermal cycler containing a plurality of samples is achieved by an apparatus comprising a multi-receptacle sample block, a thermoelectric module, and a finned heat sink block, all shaped to be capable of arrangement in a stacked configuration in which the sample block is in thermal contact with the thermoelectric module and the thermoelectric module is in thermal contact with the heat sink block. A support frame is sized to receive the sample block, the thermoelectric module, and the finned heat sink block in the stacked configuration. A bar sized to fit between adjacent fins of the finned heat sink block, and a system for affixing the bar to the support frame is used to secure the finned heat sink block against the thermoelectric module when in the stacked configuration.