| 摘要 |
A sample presentation device for radiation-based analytical equipment is provided comprising a mounting base, a carrier carried by, and adjustable in position, typically in the vertical direction, relative to the mounting base, and an arm extending from the carrier and having at its opposite end a terminal member. Each of the carrier and terminal member has a coaxial connector for receiving two opposite end regions of a capillary tube that forms, in use, a reaction cell. A radiant heater, typically an infrared heater, is radially offset from the axis of the coaxial connectors for heating, in use, a capillary tube mounted by way of the coaxial connectors. The carrier and terminal member preferably have heaters associated therewith for heating the flow passages through them as and when necessary. The terminal member preferably has a passage generally coaxial with the connector for receiving a communications conductor carrying a temperature sensor at its end that is operatively located generally centrally within a capillary.
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