| 摘要 |
PROBLEM TO BE SOLVED: To reduce the organic solvent amount used, without requiring additional enriching operations or additional devices, to reduce a pretreatment time, and to easily extract a solvent inexpensively, in a solvent extraction method. SOLUTION: This micro amount solvent extraction method includes a process for adding salts into the water sample to be dissolved, and a process, for adding a micro amount organic solvent into the sample water added with the salts, in a solvent extraction method for extracting an easily organic-solvent-dissolved component from a water sample with an organic solvent, the easily organic-solvent-dissolved component is thereby extracted at a high enriching factor from the water sample, without requiring additional enrichment, and the used organic solvent amount and the pretreatment time are also reduced therein. The sample, pretreated by a tapered vial bin, is collected from an auto-injector, together with the vial bin to be chromatographically-analyzed, in this solvent extractor for easily extracting the organic-solvent-dissolved component from the water sample by the organic solvent, and thereby dispenses with the sneed for the sample to be transferred to another vial bin. COPYRIGHT: (C)2007,JPO&INPIT
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