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A gas chromatography column connector

A gas chromatographic column and chromatographic column technology, applied in the field of gas chromatographic column connectors, can solve the problems of difficult air tightness control, time-consuming and labor-intensive problems, and achieve the effect of solving looseness

Active Publication Date: 2021-07-20
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing chromatographic column connectors need to be installed with tools, and the airtightness is difficult to control, so the chromatographic column is often cut off, which is time-consuming and laborious to use

Method used

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  • A gas chromatography column connector
  • A gas chromatography column connector
  • A gas chromatography column connector

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Embodiment Construction

[0020] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Please refer to Figure 1 to Figure 3 As shown, a gas chromatography column connector includes a thumb screw 1 , a thumb nut 4 , a column connecting liner 6 , a support pad 7 and an anti-loosening spring 8 .

[0022] The thumb screw 1 includes a screw fastening rod 2 and an ear piece arranged on the outer periphery of the screw fastening rod 2 . The screw fastening rod 2 is a hollow structure with an open end, which is used for socketing with the chromatographic column connecting liner 6 , and the outer wall of the end is provided with a hand screw outer thread 3 , and the center of the other end is provided with a screw chromatographic column hole 9 .

[0023] The thumb nut 4 includes a nut fastening cap 5 and ear pieces ...

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PUM

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Abstract

The invention discloses a gas chromatography column connector, which comprises a hand-tightening screw, a hand-tightening nut, a chromatographic column connecting liner, a support pad and an anti-loosening spring; both the hand-tightening screw and the hand-tightening nut are hollow structures with one end open, two After being screwed, a cylindrical cavity is formed inside; the chromatographic column connecting liner is sleeved in the cylindrical cavity, one end is connected with the hand screw through the support pad and the anti-loosening spring, and the other end is connected through the support pad, The anti-loosening spring is connected with the hand-tightening nut; the hand-tightening screw is provided with a screw chromatographic column hole, the hand-tightening nut is provided with a nut chromatographic column hole, the support pad is provided with a through hole, and the chromatographic column connecting liner is provided with a chromatographic column channel. Connected in sequence to form a chromatographic column installation channel. The gas chromatographic column connector of the present invention can connect two chromatographic columns just by hand-tightening, and the test result will not be affected by frequent heating and cooling, air leakage, improves the service efficiency and service life of the instrument, and protects the chromatographic column.

Description

technical field [0001] The invention relates to the field of analytical testing instruments, in particular to a gas chromatography column connector. Background technique [0002] In the analysis and testing process of gas chromatography-mass spectrometry, it is usually necessary to install a pre-column to solve the problem of high boiling point component pollution, and install a vacuum damping capillary to solve the problem of vacuum release when changing columns. However, the existing chromatographic column connectors need to be installed with tools, and the airtightness is difficult to control, so the chromatographic column is often cut off, which is time-consuming and laborious to use. Contents of the invention [0003] In order to solve the above problems, the present invention provides a gas chromatographic column connector, which can connect two chromatographic columns just by hand-tightening, and will not affect the test results due to frequent heating and cooling, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/60F16B37/14F16B37/16F16B35/06F16B35/04F16B39/24F16B39/26F16B43/00F16B7/06
CPCF16B7/06F16B35/041F16B35/06F16B37/145F16B37/16F16B39/24F16B39/26F16B43/001G01N30/6039
Inventor 刘世君王小曼梁正付娟卢思
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI