Plate-type column, temperature regulation system and gas chromatograph system

Patent metadata

Field	Value
Publication number	US-9594064-B2
Application number	US-201313896138-A
Country	US
Kind code	B2
Filing date	May 16, 2013
Priority date	May 17, 2012
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

Provided is a plate-type column which allows the temperature of its inner passage to be rapidly increased or decreased while ensuring the correctness of an analysis or other operations. A plate-type column 10 includes: a plate-shaped main body 11 ; projecting portions 12 and 13 protruding from a circumferential edge of the main body 11 ; and a fluid-flow passage 14 extending in the main body 11 and the projecting portions 12 and 13 . An intermediate portion of the passage 14 is provided in the main body 11 , while each of the end portions of the passage 14 extends from the main body 11 through the projecting portion 12 or 13 , with each of the end portions being open to the outside at the tip of the projecting portion 12 or 13.

First claim

The invention claimed is:

1. A plate type column, comprising:
a) a plate-shaped main body; and
b) a projecting portion protruding from a circumferential edge of the main body, the plate-shaped main body and the projecting portion forming therein a groove as a fluid-flow passage extending in the main body and the projecting portion,
wherein an intermediate portion of the passage is provided in the main body, while end portions of the passage extend from the main body through the projecting portion, with each of the end portions being open to an outside at a tip of the projecting portion, thus allowing the main body and the projecting portion to individually and independently undergo a temperature regulation, and
wherein two or more projecting portions are provided for the main body, and each of the end portions of the passage is extended through a different projecting portion.

2. The plate-type column according to claim 1 , wherein both the main body and the projecting portion are formed on a same member, with a portion of this member being cut off to form the projecting portion.

3. The plate-type column according to claim 1 , wherein a stationary phase for gas chromatography is supported on an inner wall of the passage.

4. The plate-type column according to claim 1 , wherein the main body and the projecting portion consist of two substrates laminated to each other and the groove is formed on one side of one of the two substrates.

5. The plate-type column according to claim 4 , wherein a through-hole for communicating with an external space is formed in the projecting portion of another substrate of the two substrates.

6. The plate-type column according to claim 1 , wherein:
the main body is sandwiched with a pair of plate-shaped heaters and a temperature of the main body is regulated by the pair of plate-shaped heaters; and
a temperature of the projecting portion is regulated by an oven.

7. A temperature regulation system for regulating a temperature of the plate type column including: a plate-shaped main body; a projecting portion protruding from a circumferential edge of the main body, the plate-shaped main body and the projecting portion forming therein a groove as a fluid-flow passage extending in the main body and the projecting portion, where an intermediate portion of the passage is provided in the main body, while end portions of the passage extend from the main body through the projecting portion, with each of the end portions being open to an outside at a tip of the projecting portion, the temperature regulation system comprising:
a) a first temperature regulator for regulating a temperature of the main body;
b) a second temperature regulator for regulating a temperature of the projecting portion; and
c) a controller for individually and independently controlling the first temperature regulator and the second temperature regulator,
wherein two or more projecting portions are provided for the main body, and each of the end portions of the passage is extended through a different projecting portion.

8. A gas chromatograph system comprising:
a plate-type column including:
a plate-shaped main body; and
a projecting portion protruding from a circumferential edge of the main body, the plate-shaped main body and the projecting portion forming therein a groove as
a fluid-flow passage extending in the main body and the projecting portion, where-an intermediate portion of the passage is provided in the main body, while end portions of the passage extend from the main body through the projecting portion, with each of the end portions being open to an outside at a tip of the projecting portion, and a stationary phase for gas chromatography is supported on an inner wall of the passage; and

a temperature regulation system including:
a first temperature regulator for regulating a temperature of the main body;
a second temperature regulator for regulating a temperature of the projecting portion; and
a controller for individually and independently controlling the first temperature regulator and the second temperature regulator,
wherein two or more projecting portions are provided for the main body, and each of the end portions of the passage is extended through a different projecting portion.

9. The gas chromatograph system according to claim 8 , wherein:
the second temperature regulator is a convection-type oven including a heater and a fan, and the projecting portion is contained in the oven; and
the first temperature regulator is a plate temperature regulator which is located next to the oven, an inner space of the plate temperature regulator communicates with an inner space of the oven through an opening formed in a wall of the oven, and the main body is contained in the plate temperature regulator.

10. The gas chromatograph system according to claim 9 , wherein the plate temperature regulator includes two plate-shaped heaters which sandwich the main body.

11. The gas chromatograph system according to claim 9 , wherein:
the oven further includes a first tube for sending a gaseous sample and a carrier gas introduced from a sample vaporizing chamber to the plate-type column, a second tube for sending sample components from the plate-type column to a detector, and a tube connection member for connecting the projecting portion, the first tube, and the second tube.

Assignees

• Shimadzu Corp

Inventors

• Kanai Masaki
• Nishimoto Takahiro
• Nishino Masanori
• Matsuoka Satoshi

Classifications

• G01N30/90 Primary

  Plate chromatography, e.g. thin layer or paper chromatography · CPC title

• G01N30/54

  Temperature · CPC title

• G01N30/6004

  end pieces · CPC title

• G01N30/30 Primary

  of temperature · CPC title

• G01N2030/3007

  same temperature for whole column · CPC title