Gas chromatography device

Patent metadata

Field	Value
Publication number	US-9897576-B2
Application number	US-201214427053-A
Country	US
Kind code	B2
Filing date	Sep 11, 2012
Priority date	Sep 11, 2012
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

A gas chromatography device includes a sample injection part, a detector, a separation column, and a transfer line connecting between the sample injection part and the separation column and between the sample injection part and the detector. Furthermore, a column temperature adjustment part for adjusting the temperature of the separation column, and a line temperature adjustment part for adjusting the temperature of the transfer line are provided. The line temperature adjustment part is structured to include a heat block which includes a heating element and which is in contact with the transfer line from one side, and a holding member which presses the transfer line toward the heat block side by being in contact from the other side, and to sandwich the transfer line by the heat block and the holding member.

First claim

What is claimed is:

1. A gas chromatography device comprising:
a sample injection part;
a detector;
a separation column;
a first transfer line for connecting between the sample injection part and the separation column, and a second transfer line for connecting between the separation column and the detector;
a column temperature adjustment part including a column heating member for heating the separation column by being in contact with the separation column; and
a line temperature adjustment part including a line heating member for heating the first and second transfer lines by being in contact with the first and second transfer lines and a line holding member arranged on an opposite side of the first and second transfer lines from the line heating member, the line temperature adjustment part being for adjusting temperature of the first and second transfer lines by sandwiching the first and second transfer lines by the line heating member and the line holding member,
wherein a film heat conductive member is interposed between the first and second transfer line and the line holding member, and a part of the film heat conductive member is in contact with the line heating member.

2. The gas chromatography device according to claim 1 , wherein the line holding member is a heating member for heating the transfer line by being in contact with the transfer line.

3. The gas chromatography device according to claim 2 , wherein the column heating member and the line heating member are formed from a common heat block.

4. The gas chromatography device according to claim 3 ,
wherein the column temperature adjustment part includes a column holding member, arranged on an opposite side of the separation column from the column heating member, for sandwiching the separation column with the column heating member, and
wherein the column holding member and the line holding member are formed from a common heat block.

5. The gas chromatography device according to claim 3 ,
wherein the column temperature adjustment part includes a column holding member, arranged on an opposite side of the separation column from the column heating member, for sandwiching the separation column with the column heating member, and
wherein the column holding member and the line holding member are formed from a common flexible heat insulating member.

6. The gas chromatography device according to claim 2 , wherein the column heating member and the line heating member are integrated while being thermally separated by having a heat insulating member sandwiched therebetween.

7. The gas chromatography device according to claim 6 ,
wherein the column temperature adjustment part includes a column holding member, arranged on an opposite side of the separation column from the column heating member, for sandwiching the separation column with the column heating member, and
wherein the column holding member and the line holding member are formed from a common flexible heat insulating member.

8. The gas chromatography device according to claim 1 , wherein the line holding member is a flexible heat insulating member.

9. The gas chromatography device according to claim 8 , wherein the column heating member and the line heating member are formed from a common heat block.

10. The gas chromatography device according to claim 9 ,
wherein the column temperature adjustment part includes a column holding member, arranged on an opposite side of the separation column from the column heating member, for sandwiching the separation column with the column heating member, and
wherein the column holding member and the line holding member are formed from a common heat block.

11. The gas chromatography device according to claim 9 ,
wherein the column temperature adjustment part includes a column holding member, arranged on an opposite side of the separation column from the column heating member, for sandwiching the separation column with the column heating member, and
wherein the column holding member and the line holding member are formed from a common flexible heat insulating member.

12. The gas chromatography device according to claim 8 , wherein the column heating member and the line heating member are integrated while being thermally separated by having a heat insulating member sandwiched therebetween.

13. The gas chromatography device according to claim 12 ,
wherein the column temperature adjustment part includes a column holding member, arranged on an opposite side of the separation column from the column heating member, for sandwiching the separation column with the column heating member, and
wherein the column holding member and the line holding member are formed from a common flexible heat insulating member.

14. The gas chromatography device according to claim 1 , wherein the heat conductive member is aluminum foil.

15. The gas according to claim 1 , wherein concave portions for retaining, by having fitted therein, a connection member for connecting the transfer line and the sample injection part and a connection member for connecting the transfer line and the detector are provided on a surface of the line heating member that is in contact with the transfer line.

16. The chromatography device according to claim 15 , comprising:
a housing for retaining the sample injection part, the detector, and the line heating member, wherein portions of the line heating member where the concave portions are provided are attachable/detachable.

17. The chromatography device according claim 1 , wherein a concave portion for retaining, by having fitted therein, the separation column is provided on a surface of the column heating member that is in contact with the separation column.

18. The gas chromatography device according to claim 1 ,
wherein the line temperature adjustment part is further configured to adjust temperature of a connection member for connecting the transfer line and the sample injection part and a connection member for connecting the transfer line and the detector.

Assignees

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

Inventors

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

Classifications

• G01N2030/3007

  same temperature for whole column · CPC title

• G01N2030/3046

  temperature control of column inlet · CPC title

• G01N30/30 Primary

  of temperature · CPC title

• G01N2030/3084

  ovens · CPC title

• G01N30/16

  Injection (G01N30/24 takes precedence) · CPC title