| 摘要 |
The present invention relates to heating of samples in specimen carriers, and more particularly to the heating of zones of a specimen carrier for differential heating of samples in a specimen carrier. According to one aspect of the present invention there is provided apparatus for heating samples, the apparatus comprising: a specimen carrier in the form of a metallic sheet, in which sheet a matrix of sample wells is incorporated, means for applying electrical heating current through the carrier, characterised by a plurality of electrical current sources, each connected in series across the carrier and together providing a variety of different possible current flow paths whereby localised regions of the carrier may be selectively heated. In one embodiment of the current applied is alternating current. In another aspect of the invention the current provided by the sources is direct current. |
