基于酸碱法和树脂法的土壤多环芳烃分级

摘要

分别采用酸碱提取法和非极性离子交换树脂（简称XAD-8树脂）提取法将土壤分为轻组分和重组分（胡敏酸、富里酸、胡敏素），并研究多环芳烃在各组分中的赋存特征。2种方法提取的各种组分物质吸收峰形基本相似，即提取物质一致，但提取物的响应值有明显差别。酸碱分级法和树脂分级法提取的总多环芳烃含量均为轻组高于重组，而重组中多环芳烃主要分布在胡敏素中，分别占重组中多环芳烃总量的54% 左右、75% 左右。酸碱分级法和树脂分级法提取的多环芳烃总量回收率分别为100.7% 和147.2%。

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	隋红
	任兴飞
	廖晓勇
	阎秀兰
	马栋

关键词：多环芳烃；土壤；有机质；分级；赋存

Abstract：

Adopting acid and alkali extraction method and non-polar ion exchange resin (XAD-8 resin) extraction method, soil could be divided into light fractions (LF), high fractions (HF), Humic acid (HA), Fulvic acid(FA) and Humin(HM), and the adsorption characteristics of polycyclic aromatic hydrocarbons (PAHs) in the fractions was studied. These fractions extracted by the above two methods had the similar peak shape, namely extracts were the same. The contents of total PAHs in LF were far greater than HF in the acid and alkali extraction method and XAD-8 resin extraction method, and the contents of PAHs in HF were mainly distributed in HM, accounted for around 54% and 75% of the total PAHs in HF. The PAHs' total recovery extracted by acid and alkali extraction method and XAD-8 resin extraction method was 100.7%, 147.2% respectively.

Keywords： polycyclic aromatic hydrocarbons(PAHs)； soil； the organic matter； classification； adsportion

Received 2015-05-10;

Fund:

国家自然科学基金（41271339）项目；天津市自然科学基金（12JCQNJC05300）项目；国家自然基金（41471258）项目。

Corresponding Authors: 廖晓勇,E-mail:liaoxy@igsnrr.ac.cn。 Email: liaoxy@igsnrr.ac.cn

About author: 隋红(1976-),女,副教授,从事石油化工过程强化和环境修复方向。

引用本文:

隋红, 任兴飞, 廖晓勇, 阎秀兰, 马栋.基于酸碱法和树脂法的土壤多环芳烃分级[J]. 化学工业与工程, 2017,34(3): 72-79

Sui Hong, Ren Xingfei, Liao Xiaoyong, Yan Xiulan, Ma Dong.PAHs in Soils Classification Based on Acid and Alkali Extraction Method and Resin Extraction Method[J]. Chemcial Industry and Engineering, 2017,34(3): 72-79

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