Gas chromatographic column used for analyzing benzene series

A gas chromatographic column and chromatographic column technology, which is applied to the analysis of materials, material separation, and measurement devices, can solve the problems of large amount of fillers, slow moving speed, and long peak extraction time, and achieve fast peak extraction time and reduced column length. Short, cost-saving effect on production

Inactive Publication Date: 2019-04-05
LANZHOU ZKAT ANALYSIS TECH
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Gas chromatographic columns are widely used in petroleum, chemical industry, biochemistry, medicine and health, food industry, etc. In gas chromatographic analysis, whether the components to be tested can be effectively separated mainly depends on the stationary phase, and the stationary phase and each group in the sample Components have different affinities. When the carrier gas carries the sample continuously through the chromatographic column, the component with high affinity moves slowly in the chromatographic column, while the component with low affinity moves fast. Currently, the common chromatographic column used for analyzing benzene series The separation performance is average, the chromatographic column is longer, the amount of filler is more, and the peak time is longer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gas chromatographic column used for analyzing benzene series
  • Gas chromatographic column used for analyzing benzene series
  • Gas chromatographic column used for analyzing benzene series

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The chromatographic column of the invention is used to analyze and detect standard samples of benzene series.

[0020] 1. Equipment and equipment

[0021] Gas chromatograph, aging instrument, vacuum pump (gas rate: 8L / S), small stick, triangular funnel, thin metal stick (used to plug glass wool at both ends of the column), beaker (100ml), triangular flask (100ml), medicine spoon; reagents: dichloromethane, acetone, n-pentane, benzene (all dissolved are of analytical grade), standard samples of benzene series.

[0022] 2. Operation steps

[0023] 1. Column tube

[0024] The column length is 1.5m, and the stainless steel chromatographic column tube with an inner diameter of 3mm.

[0025] 2. Selection of support

[0026] Chromosorb WAW DMCS 80-100 mesh.

[0027] 3. Preparation of fixative

[0028] 3.7% organobentonite and 2.3% dinonyl phthalate (DNP).

[0029] 4. Column packing

[0030] Before loading the column, first mark the column clearly at the injection end a...

Embodiment 2

[0041] The chromatographic column prepared by the national standard was used to analyze and detect the standard samples of benzene series.

[0042] 1. Equipment and equipment

[0043] The equipment and equipment that embodiment 2 adopts are identical with the equipment and equipment that embodiment 1 adopts.

[0044] 2. Operation steps

[0045] 1. Column tube

[0046] The column length is 2m, and the inner diameter is 3mm stainless steel chromatographic column tube.

[0047] 2. Selection of support

[0048] Chromosorb G DMCS 80-100 mesh.

[0049] 3. Preparation of fixative

[0050] 2.5% organobentonite and 2.5% dinonyl phthalate (DNP).

[0051] 4. Column packing

[0052] The packing process is the same as that of Example 1.

[0053] 5. Aging

[0054] Set the program of the aging instrument, increase the temperature to 150°C at a rate of 5°C / min, and age the chromatographic column for 10 hours.

[0055] 6. Column Evaluation

[0056] Fixative: 2.5% organobentonite and...

Embodiment 3

[0061] The column length of the chromatographic column prepared by the national standard is extended to 3.5m, which is used to analyze and detect the standard sample of benzene series.

[0062] 1. Equipment and equipment

[0063]The equipment and equipment that embodiment 3 adopts are identical with the equipment and equipment that embodiment 2 adopts.

[0064] 2. Operation steps

[0065] 1. Column tube

[0066] The column length is 3.5m, and the stainless steel chromatographic column tube with an inner diameter of 3mm.

[0067] 2. Selection of support

[0068] Chromosorb G DMCS 80-100 mesh.

[0069] 3. Preparation of fixative

[0070] 2.5% organobentonite and 2.5% dinonyl phthalate (DNP).

[0071] 4. Column packing

[0072] The packing process is the same as that of Example 2.

[0073] 5. Aging

[0074] Set the program of the aging instrument, increase the temperature to 150°C at a rate of 5°C / min, and age the chromatographic column for 10 hours.

[0075] 6. Column ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a gas chromatographic column for analyzing benzene series. The gas chromatographic column comprises a chromatographic column tube, a supporter and a fixing liquid, wherein thelength of the chromatographic column tube is 1.5 m, the inner diameter of the chromatographic column tube is 3 mm, the supporter is Chromosorb WAW DMCS of 80-100 meshes, the fixing liquid comprises 3.7% of bentonite and 2.3% of dinonyl phthalate, and the chromatographic column tube is a stainless steel tube. Compared with the prior art, effective separation of the benzene series can be realized under a condition that the chromatographic column is shorter, and the gas chromatographic column is convenient, rapid and reliable.

Description

technical field [0001] The invention belongs to the technical field of analytical chemistry, and in particular relates to a gas chromatography column for analyzing benzene series. Background technique [0002] Gas chromatographic columns are widely used in petroleum, chemical industry, biochemistry, medicine and health, food industry, etc. In gas chromatographic analysis, whether the components to be tested can be effectively separated mainly depends on the stationary phase, and the stationary phase and each group in the sample Components have different affinities. When the carrier gas carries the sample continuously through the chromatographic column, the component with high affinity moves slowly in the chromatographic column, while the component with low affinity moves fast. Currently, the common chromatographic column used for analyzing benzene series The separation performance is average, the chromatographic column is longer, the amount of filler is more, and the peak ti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/065
Inventor 常诚张青张佳杨辰轩李仲琴
Owner LANZHOU ZKAT ANALYSIS TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap