Carbon speciation in airborne particulate matter with C (1s) NEXAFS spectroscopy

被引：53

作者：

Braun, A

机构：

[1] Univ Kentucky, Dept Chem & Mat Engn, Lexington, KY 40506 USA

[2] Consortium Fossil Fuel Sci, Lexington, KY 40506 USA

来源：

JOURNAL OF ENVIRONMENTAL MONITORING | 2005年 / 7卷 / 11期

关键词：

D O I：

10.1039/b508910g

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Recent and current research activities on the chemical characterization of carbon in airborne carbonaceous particulate matter with near-edge X-ray absorption. ne structure (NEXAFS) spectroscopy are reviewed. NEXAFS spectroscopy uses soft X-rays from synchrotron radiation facilities and allows for the bulk and surface speciation of particulates smaller than 2.5 micrometres (PM 2.5). This relatively novel technique is often superior to TEM-EELS and FTIR spectroscopy. In the extreme case, one single PM particle is sufficient for characterization. Liquids, extracts, solid core and surface functional groups can be quantified. Preliminary data on combustion derived PM such as diesel soot, wood smoke and tobacco smoke are compared with ambient samples.

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页码：1059 / 1065

页数：7

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