Method for analyzing source of secondary organic carbon in ambient air fine particles

A technology for secondary organic carbon and fine particles, which is applied to the analysis of materials, material analysis by electromagnetic means, and measurement devices, etc. It can solve problems such as the difficulty of stable carbon isotope composition and the difficulty of separating secondary organic carbon, and achieve the goal of overcoming tracer Objects are limited and difficult to identify, avoid errors, and the results of analysis are accurate and reliable

Inactive Publication Date: 2013-07-31
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that secondary organic carbon is difficult to separate from organic carbon, and it is difficult to determine the stable carbon isotope composition of secondary organic carbon, thereby providing a method for analyzing the source of secondary organic carbon in ambient air fine particles Methods

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  • Method for analyzing source of secondary organic carbon in ambient air fine particles
  • Method for analyzing source of secondary organic carbon in ambient air fine particles
  • Method for analyzing source of secondary organic carbon in ambient air fine particles

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Embodiment Construction

[0028] According to the present invention, ambient air fine particulate matter PM in the heating period and non-heating period of Taiyuan City 2.5 Taking secondary organic carbon source analysis as an example, in conjunction with the accompanying drawings, the specific implementation modes of the present invention are further described in detail with examples, which are subject to those skilled in the art. This embodiment is a detailed description of the present invention and does not limit the present invention in any way.

[0029] Implement a method for analyzing the source of secondary organic carbon in the ambient air fine particulate matter provided by the present invention, the method is at first to measure the ambient air fine particulate matter PM 2.5 The concentration and stable carbon isotope composition of organic carbon and elemental carbon in medium, and then calculate the fine particulate matter PM 2.5 The stable carbon isotope composition of secondary organic c...

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Abstract

The invention relates to a method for analyzing a source of secondary organic carbon in ambient air fine particles. The method comprises: determining concentrations and stable carbon isotope compositions of organic carbon and elemental carbon in ambient air fine particle PM2.5; calculating to obtain stable carbon isotope composition of secondary organic carbon in the ambient air fine particle PM2.5; and finally adopting a stable carbon isotope technology to analyze a source of the secondary organic carbon in the ambient air fine particle PM2.5. According to the present invention, a binary composite isotope mass balance model is adopted to calculate the carbon isotope composition of the secondary organic carbon, such that problems that the secondary organic carbon is difficultly separated from the organic carbon and determination of the carbon isotope composition of the secondary organic carbon is difficult are solved, a new method for analyzing the source of the secondary organic carbon is provided, and problems that tracers are limited and identification is difficult of the existing organic molecule tracer method are avoided.

Description

technical field [0001] The invention relates to a method for analyzing ambient air fine particulate matter PM 2.5 The method of secondary organic carbon sources, especially the use of stable carbon isotope technology to trace ambient air fine particulate matter PM 2.5 Approaches to Secondary Organic Carbon Sources. technical background [0002] Secondary organic carbon is fine particulate matter PM 2.5 It is an important part of volatile organic compounds or semi-volatile organic compounds emitted by natural sources and man-made sources through atmospheric oxidation and gas particle distribution, which have a significant impact on atmospheric visibility and climate. The main components of secondary organic carbon include polycyclic aromatic hydrocarbons, normal alkanes, organic acids, carbonyl compounds, etc., some of which are highly carcinogenic and seriously endanger human health. In order to better control fine particulate matter PM 2.5 pollution, the most important ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62
Inventor 刘效峰彭林白慧玲宋翀芳牟玲
Owner TAIYUAN UNIV OF TECH
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