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DOI	10.1016/j.atmosenv.2015.09.049
	A new isolation method for biomass-burning tracers in snow: Measurements of p-hydroxybenzoic, vanillic, and dehydroabietic acids
	Gao, Shaopeng; Liu, Dameng; Kang, Shichang; Kawamura, Kimitaka; Wu, Guangming; Zhang, Guoshuai; Cong, Zhiyuan
发表日期	2015
ISSN	1352-2310
EISSN	1873-2844
卷号	122
英文摘要	Organic acids such as p-hydroxybenzoic, vanillic, and dehydroabietic acids are unique biomass-burning tracers for black carbon (BC) and dissolved organic carbon (DOC) in the snow of mountain glaciers, Arctic and Antarctic ice sheets. In this study, we developed a method by solid-phase extraction (SPE) coupled with gas chromatography/ion trap mass spectrometry for the determination of those organic acids in snow. The limit of detection (LOD) is 0.002, 0.001, 0.004 ng mL(-1) for p-hydroxybenzoic, vanillic, and dehydroabietic acids, respectively. For p-hydroxybenzoic and vanillic acids, all the four SPE cartridges used produce good recoveries (>75%). However, for dehydroabietic acid, HLB cartridge has much better performance than DPA, FEP-2 and PAX cartridges. The method was applied to the snow samples collected from Zhadang Glacier in the Tibetan Plateau (TP), and demonstrated its feasibility in pretreating and detecting of these target compounds. We found that BC and DOC accumulated in the snow during winter and spring over the TP glaciers are mainly derived from biomass burning. This result demonstrates the capability of our analytical method for a deep understanding on the source of carbonaceous materials in snow. (C) 2015 Elsevier Ltd. All rights reserved.
关键词	Glacier snow Solid-phase extraction DOC BC Biomass-burning tracer
学科领域	Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences ; Meteorology & Atmospheric Sciences
来源期刊	ATMOSPHERIC ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111756
作者单位	China Univ Geosci, Sch Energy Resources, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Gao, Shaopeng,Liu, Dameng,Kang, Shichang,et al. A new isolation method for biomass-burning tracers in snow: Measurements of p-hydroxybenzoic, vanillic, and dehydroabietic acids[J]. 中国科学院西北生态环境资源研究院,2015,122.
APA	Gao, Shaopeng.,Liu, Dameng.,Kang, Shichang.,Kawamura, Kimitaka.,Wu, Guangming.,...&Cong, Zhiyuan.(2015).A new isolation method for biomass-burning tracers in snow: Measurements of p-hydroxybenzoic, vanillic, and dehydroabietic acids.ATMOSPHERIC ENVIRONMENT,122.
MLA	Gao, Shaopeng,et al."A new isolation method for biomass-burning tracers in snow: Measurements of p-hydroxybenzoic, vanillic, and dehydroabietic acids".ATMOSPHERIC ENVIRONMENT 122(2015).