| 摘要 |
<p>A solution containing a target compound is flowed through trap column (14) so as to have the target compound trapped in the column (14). Thereafter, water is introduced in the trap column (14) for washing. Then, 6-way valve (7) is switched and opening or closing valve (6) is opened so as to introduce nitrogen gas through supply-side channel (8) in the trap column (14). In this stage, by means of heat exchange block (10), the nitrogen gas is warmed, and the trap column (14) is warmed by column rack (15). Any water remaining in the trap column (14) is first pushed up by the nitrogen gas, going out from exit edge (14b) and discharged through discharge-side channel (20). Further, any water adhering to adsorbent and internal wall surface of the trap column (14) is promptly evaporated and carried away by the nitrogen gas. Accordingly, as any water remaining in the trap column (14) can be rapidly removed, water mixing can be avoided in the ensuing eluate recovery by introducion of a solvent with strong eluting power in the trap column (14) to thereby realize rapid eluate evaporation/drying with the result that the target compound in solid form can be efficiently collected.</p> |
