Patent ID: 8196450

Claim:
A gas chromatograph comprising: a sample vaporization unit having a base frame, a flow channel provided in the base frame, and a rugged portion provided by microfabrication in the flow channel to vaporize a sample; an energy supply unit for supplying energy for heating the rugged portion; a column connected to the sample vaporization unit to separate the sample carried by a carrier gas from the sample vaporization unit into its components; and a detector connected to a discharge side of the column to detect the components of the sample discharged from the column, wherein the rugged portion is one selected from the group consisting of (A) porous silicon, (B) needle-shaped projections being formed by anisotropic dry etching of silicon, (C) needle-shaped projections being black silicon, and (D) one being formed by injection molding, which has a rectangular cross section or a circular cross section or is constituted from needle-shaped projections.