| 摘要 |
[PROBLEMS] To prevent a specimen from being diffused by the improper capacity of tubing. [MEANS FOR SOLVING PROBLEMS] This specimen pretreating device comprises a micro scale or nano scale high-performance liquid chromatograph having a capillary column ( 2 ), a probe ( 1 ) integrally formed at the tip of the capillary column ( 2 ), and an additive feeding flow passage ( 16 ). The probe ( 1 ) is formed in a multi-tube structure in which a plurality of tubes are disposed on a same axis. The innermost tube is located at the tip of the capillary column ( 2 ), and one of the outer tubes is used as an additive supply tube converging an additive solution to an eluent solvent eluted from the capillary column ( 2 ) to form liquid drips including the eluent solvent and an additive and the liquid drips are dripped from the tip of the prove ( 1 ). The specimen is not diffused since a detector is not present it the flow passage.
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