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A Greenhouse Gas-Based Bubble Extraction Device and Its Efficient Analysis Method for Sample Volatile Components

A greenhouse gas and extraction device technology, applied in the field of organic analysis, to achieve the effect of strong practicability, good coupling effect, and high signal-to-noise ratio

Active Publication Date: 2022-03-01
SICHUAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no reports at home and abroad on the purification of organic and inorganic components in water samples and the accurate qualitative and quantitative analysis of trace volatile components by using greenhouse gases. It is worthy of in-depth discussion and research.

Method used

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  • A Greenhouse Gas-Based Bubble Extraction Device and Its Efficient Analysis Method for Sample Volatile Components
  • A Greenhouse Gas-Based Bubble Extraction Device and Its Efficient Analysis Method for Sample Volatile Components
  • A Greenhouse Gas-Based Bubble Extraction Device and Its Efficient Analysis Method for Sample Volatile Components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Contains naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, fluoranthene, pyrene and The standard aqueous solution of 8 kinds of polycyclic aromatic hydrocarbons was extracted by bubbles, and the standard curve range was 10.0–100 μg mL –1 , where naphthalene is represented by naphthalene-d 8 As internal standard, acenaphthylene is represented by acenaphthylene-d 10 As internal standard, acenaphthene, fluorene and phenanthrene-d 10 As internal standard, phenanthrene, fluoranthene, pyrene and by -d 12 as the internal standard, the internal standard concentration is 60 μg mL –1 , using SIM mode to quantify, this method has a good linear relationship, r 2 ≥0.991.

[0054] GC-MS conditions: the instrument model is Agilent 7890 / 7000C, using HP-5MS capillary column (30m×0.25mm, thickness 0.25μm), carrier gas: helium, flow rate is 1.0mL min –1 ;Temperature program: keep at 80°C for 2 minutes, then at 20°C for min –1 Raise the temperature to 180°C, ke...

Embodiment 2

[0057] Contains naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, fluoranthene, pyrene and The standard aqueous solution of 8 kinds of polycyclic aromatic hydrocarbons was extracted by bubbles, and the standard curve range was 10.0–100 μg mL –1 , where naphthalene is represented by naphthalene-d 8 As internal standard, acenaphthylene is represented by acenaphthylene-d 10 As internal standard, acenaphthene, fluorene and phenanthrene-d 10 As internal standard, phenanthrene, fluoranthene, pyrene and by -d 12 as the internal standard, the internal standard concentration is 60.0 μg mL –1 , using SIM mode to quantify, this method has a good linear relationship, r 2 ≥0.991.

[0058] GC-MS conditions: the instrument model is Agilent 7890 / 7000C, using HP-5MS capillary column (30m×0.25mm, thickness 0.25μm), carrier gas: helium, flow rate 1.0mL min –1 ;Temperature program: keep at 80°C for 2 minutes, then at 20°C for min –1 Raise the temperature to 180°C, kee...

Embodiment 3

[0061] Contains naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, fluoranthene, pyrene and The standard aqueous solution of 8 kinds of polycyclic aromatic hydrocarbons was subjected to bubble extraction, and the standard curve range was 10.0–100 μg mL –1 , where naphthalene is represented by naphthalene-d 8 As internal standard, acenaphthylene is represented by acenaphthylene-d 10 As internal standard, acenaphthene, fluorene and phenanthrene-d10 As internal standard, phenanthrene, fluoranthene, pyrene and by -d 12 as the internal standard, the internal standard concentration is 60.0 μg mL –1 , using SIM mode to quantify, this method has a good linear relationship, r 2 ≥0.991.

[0062] GC-MS conditions: the instrument model is Agilent 7890 / 7000C, using HP-5MS capillary column (30m×0.25mm, thickness 0.25μm), carrier gas: helium, flow rate 1.0mL min –1 ;Temperature program: keep at 80°C for 2 minutes, then at 20°C for min –1 Raise the temperature to 18...

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Abstract

The invention discloses a greenhouse gas-based bubble extraction device and an efficient analysis method for realizing volatile components, belonging to the technical field of organic analysis. Includes GC / MS analyzer, desiccant trap, trap, six-way valve, U-tube for holding liquids, sample bottle for holding solids, water sample transfer tube, probes for transferring liquids and gases, and Porous sieve plate, the porous sieve plate is installed at the bottom of the straight pipe cylinder on one side of the U-shaped tube, the end of the U-shaped tube with the porous sieve plate is connected through the first connecting pipe and the six-way valve, the water sample transmission pipe is installed on the porous sieve In the straight tube column at the top of the plate; the mouth of the sample bottle is connected with the six-way valve through the second connecting tube, the bottom end of the probe is set inside the sample bottle, the top end of the probe is set outside the sample bottle, and one end of the dehumidification trap is respectively The six-way valve is connected to the first connecting pipe and the second connecting pipe, the other end of the dehumidification trap is connected to the trap, and the other end of the trap is connected to the gas chromatography analyzer through the six-way valve.

Description

technical field [0001] The invention relates to the technical field of organic analysis, in particular to a greenhouse gas-based bubble extraction device and an efficient analysis method for realizing volatile components. Background technique [0002] The analysis of volatile components is of great significance in various fields such as flavor and fragrance characteristics, food and beverage identification, environmental analysis, and quality control of samples with different properties. In most applications involving real sample analysis, complex volatile constituents are present at lower concentrations and tend to be present in more polar species. Therefore, as a common sample pretreatment method for measuring low-concentration volatile components, purge and trap technology can enrich and concentrate volatile components in complex matrices, and combine them with gas chromatography-mass spectrometry (GC-MS) for qualitative and quantitative analysis. . This method uses ine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 高元吉赵丽娟秦宇楠
Owner SICHUAN NORMAL UNIV