Gas chromatograph
AssigneeHORIBA STEC, Co., Ltd.
InventorShoji NARUKAMI
Life of this patent
Estimating the term…
Abstract
In order to provide a gas chromatograph in which any adverse effects on a reduction reaction unit that are caused by the degradation of a reduction catalyst, and any adverse effects on an analyzing unit are prevented, a gas chromatograph is provided with: a column that, by causing a sample gas to pass through itself, is able to separate constituents for measurement that are contained in the sample gas; an oxidation reaction unit that uses an oxidizing gas to oxidize the sample gas that has passed through the column so as to create an oxidation sample gas; a reduction reaction unit that uses a reducing gas to reduce the oxidation sample gas created by the oxidation reaction unit so as to create an oxidation reduction sample gas; and an analyzing unit that analyzes the sample gas.
Claims5
A gas chromatograph comprising:
- a column that, by causing a sample gas to pass through itself, is able to separate constituents to be measured that are contained in the sample gas;
- an oxidation reaction unit that, by using an oxidizing gas, oxidizes the sample gas that has passed through the column, and creates an oxidation sample gas;
- a reduction reaction unit that, by using a reducing gas, reduces the oxidation sample gas created by the oxidation reaction unit, and creates an oxidation reduction sample gas;
- and
- an analyzing unit that analyzes the sample gas, wherein
- the gas chromatograph is constituted to be able to switch between
- a first connection mode in which the oxidation reaction unit is connected to the reduction reaction unit, and the reduction reaction unit is connected to the analyzing unit, and the oxidation reduction sample gas is introduced into the analyzing unit, and
- a second connection mode in which the oxidation reaction unit is connected to the analyzing unit, and the oxidation sample gas is introduced into the analyzing unit, and wherein
- there is further provided a reducing gas supply pipe that, in both the first connection mode and the second connection mode, is connected to the reduction reaction unit and supplies the reducing gas to the reduction reaction unit.
Dependencies are inferred from the claim text.