| 摘要 |
PURPOSE:To make it possible to introduce almost all amount of volatile substance in a specimen into a gas chromatograph, etc. by causing an adsorbent to adsorb volatile substance by heating a specimen and then causing the volatile substance to revolatilize by reheating the adsorbent. CONSTITUTION:When a solid specimen is tested, one end of a tube 21 is stopped with glass wool 22 and a piece of specimen P is placed inside, and when a liquid specimen is used, a specimen capsule is made by coating a specimen liquid L on the internal surface of the tube 21'. A rubber septum 6 is removed from a specimen heating unit 2 and the specimen capsule 20 is placed in a specimen chamber 9. At this time, the flow route of a three-way cock 15 is set as shown by broken lines. After that, a glass tube is tightly closed by installing the rubber septum 6 to the tube and a connecting unit 4 is inserted into a septum S of a gas chromatograph G and the cock 15 is adjusted to the flow route shown by a solid line. Here, the specimen capsule 20 is heated by operating a specimen heating means 10. By this, volatile substance is separated from the specimen and transferred to a collector 3 by carrier gas and collected and adsorbed by an adsorbent 1. |
