Planar separation component for gas chromatography and manufacturing method and use thereof

A method for manufacturing a planar separation component for gas chromatography, comprising the steps of:

• (A) providing a substrate that is made of an aluminum material, the substrate having a first surface and a second surface that is opposite to the first surface;
• (B) forming a spiral first flow channel in the substrate, the first flow channel being indented from the first surface toward the second surface, being defined by a first wall portion of the substrate, and having a first inlet that is configured to allow an analyte to enter the first flow channel, and a first outlet that is configured to allow the analyte to exit from the first flow channel;
• (C) subjecting the substrate to an anodic oxidation treatment so as to form a porous anodic aluminum oxide separation member, the separation member having a channel-defining wall and a plurality of nanosized pores, the channel-defining wall being formed from the first wall portion of the substrate, and having a confronting surface that faces the first flow channel, and a contacting surface that is opposite to the confronting surface and in contact with the substrate, the nanosized pores being indented from the confronting surface toward the contacting surface and being in spatial communication with the first flow channel;
• and
• (D) bonding a cover unit to the first surface of the substrate so as to cover the first flow channel.