Patent ID: 8925368
Filing Date: 2015-01-06
Classification: G01N

Abstract:
1. A multi-dimensional gas chromatography chip comprising: a chip body prepared by sequentially bonding a first substrate, a second substrate and a third substrate; first micro channel pattern parts including first micro channels formed on opposite surfaces of the first and second substrates while facing each other; second micro channel pattern parts including second micro channels formed on opposite surfaces of the second and third substrates while facing each other; a gas inlet formed on one side of one surface of the first substrate, which is opposite to the surface where the first micro channel is formed, to supply a mobile phase; a gas outlet formed on an opposite side of the one surface of the first substrate, which is opposite to the surface where the first micro channel is formed, to discharge the mobile phase; position alignment markers formed on the surface of the first substrate where the first micro channel is formed, both surfaces of the second substrates and the surface of the third substrate where the second micro channel is formed; a first stationary phase spin-coated between the first and second substrates and a second stationary phase spin-coated between the second and third substrates; a modulator provided in a region serving as an inlet side of the first micro channel pattern parts formed on the first and second substrates as well as an outlet side of the second micro channel pattern parts formed on the second and third substrates; wherein the mobile phase supplied to the gas inlet passes through the first micro channel pattern part between the first and second substrates, flows through the second micro channel pattern part formed between the second and third substrates and connected to a first through hole formed through the second substrate, and passes through a second through hole, which is formed through the second substrate at the outlet side of the second micro channel pattern part, and the gas outlet of the first substrate formed in a position corresponding to the second through hole; and the gas inlet, the gas outlet and the first and second through holes are formed through an EDM (electrical discharge machining) or a sandblast scheme.