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Bubble extraction device based on greenhouse gas and method for efficiently analyzing volatile components by the same

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

Active Publication Date: 2019-12-31
SICHUAN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Bubble extraction device based on greenhouse gas and method for efficiently analyzing volatile components by the same
  • Bubble extraction device based on greenhouse gas and method for efficiently analyzing volatile components by the same
  • Bubble extraction device based on greenhouse gas and method for efficiently analyzing volatile components by the same

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 extracted by bubbles, and the standard curve range was 10.0–100 μg mL –1 , where naphthalene is represented by naphthalene-d 8 As the 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 180°C, k...

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Abstract

The invention, which belongs to the technical field of organic analysis, discloses a bubble extraction device based on greenhouse gas and a method for efficiently analyzing volatile components by thesame. The bubble extraction device comprises a gas chromatography-mass spectrometry analyzer, a dehumidification trap, a trapping trap, a six-way valve, a U-shaped pipe for containing liquid, a samplebottle for containing solids, a water sample conveying pipe, a probe for transmitting liquid and gas, and a porous sieve plate. The porous sieve plate is installed at the bottom of a straight pipe column body at one side of the U-shaped pipe; one end, provided with the porous sieve plate, of the U-shaped pipe is connected with the six-way valve through a first connecting pipe; the water sample conveying pipe is installed in the straight pipe column body at the top of the porous sieve plate; the mouth part of the sample bottle is connected with the six-way valve through a second connecting pipe; and the bottom end of the probe is arranged in the sample bottle and the top end of the probe is arranged outside the sample bottle. One end of the dehumidification trap is respectively connected with the first connecting pipe and the second connecting pipe through the six-way valve and the other end of the dehumidification trap is connected with the trapping trap; and the other end of the trapping trap is connected with the gas chromatography-mass spectrometry 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 Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 高元吉赵丽娟秦宇楠
Owner SICHUAN NORMAL UNIVERSITY
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