Patent ID: 8650936

Claim:
A liquid chromatography device, comprising: a sample inlet valve to which a sample to be analyzed is introduced, the sample inlet valve including a sample inlet port, a sample outlet port, a first sample storage loop-connecting port and a second sample storage loop-connecting port linked to each other by a sample storage loop, a solvent inlet port, and a solvent outlet port; a trap valve fluidically communicated with a solid phase extraction column and a reverse phase liquid chromatography column, the trap valve including a solid phase extraction column-connecting port, a reverse phase liquid chromatography column-connecting port, a first solvent inlet port, a second solvent inlet port, a sample conveying loop-connecting port linked to the solid phase extraction column-connecting port by a sample conveying loop, and a solvent outlet port; and a solvent dividing unit dividing flow of a solvent supplied thereto into the sample inlet valve and the trap valve.