| 黄河河南段水体中正构烷烃的分布特征与来源解析 |
| 摘要点击 2680 全文点击 1196 投稿时间：2015-09-23 修订日期：2015-11-05 |
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| 中文关键词 黄河河南段 正构烷烃 分布特征 特征参数 来源分析 |
| 英文关键词 Yellow River in Henan section n-alkanes distribution characteristic parameters source analysis |
| 作者 | 单位 | E-mail | | 冯精兰 | 河南师范大学环境学院, 黄淮水环境污染防治省部共建教育部重点实验室, 河南省环境污染控制重点实验室, 新乡 453007 | fengjinglan@163.com | | 席楠楠 | 河南师范大学环境学院, 黄淮水环境污染防治省部共建教育部重点实验室, 河南省环境污染控制重点实验室, 新乡 453007 | | | 张飞 | 河南师范大学环境学院, 黄淮水环境污染防治省部共建教育部重点实验室, 河南省环境污染控制重点实验室, 新乡 453007 | | | 刘书卉 | 河南师范大学环境学院, 黄淮水环境污染防治省部共建教育部重点实验室, 河南省环境污染控制重点实验室, 新乡 453007 | | | 孙剑辉 | 河南师范大学环境学院, 黄淮水环境污染防治省部共建教育部重点实验室, 河南省环境污染控制重点实验室, 新乡 453007 | sunjhhj@163.com |
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| 中文摘要 |
| 本研究于2010年8月采集黄河河南段26个表层水及悬浮颗粒物样品,采用气相色谱-质谱联用仪(GC-MS)测定22种正构烷烃(C14~C36)的含量,分析其组成特征,并利用特征参数解析其来源. 结果表明,黄河河南段水相中正构烷烃浓度为521~5843 ng ·L-1,平均浓度为1409 ng ·L-1,组成特征以C25为主峰碳的高碳单峰型. 悬浮颗粒相中正构烷烃浓度范围为463~11142 ng ·L-1,平均浓度为1951 ng ·L-1,组成特征表现为双峰型,C25为主峰碳的高碳烃占优势,同时存在低碳峰. 多特征参数OEP、CPI、% WaxCn以及TAR表明,黄河河南段水相及悬浮颗粒物中正构烷烃主要来源于化石燃料的燃烧,同时存在陆生植物来源. |
| 英文摘要 |
| To investigate the distributions and possible sources of n-alkanes in water and suspended particulate matter from Yellow River in Henan section, 26 water and suspended particulate matter samples were collected in August 2010 and 22 n-alkanes (C14-C36) were quantitatively determined by gas chromatography-mass spectrometer (GC-MS). Potential sources of n-alkanes were analyzed using different characteristic parameters. The results indicated that total concentrations of 22 n-alkanes were 521-5843 ng ·L-1 with a mean concentration of 1409 ng ·L-1, while the total amounts of n-alkanes in the suspended particulate matter were 463-11142 ng ·L-1 with a mean value of 1951 ng ·L-1. The composition profiles of n-alkanes in water showed unimodal distribution with a peak at C25 in water. However, the composition characteristics of n-alkanes in SPM were of bimodal type, but still with the advantage of high carbon hydrocarbons peak at C25. Results of characteristic parameters including CPI, TAR, OEP and %WaxCn showed that n-alkanes in the studied area were derived mainly from combustion of fossil fuel, while terrestrial higher plant played a role in the existence of n-alkanes in water and suspended particulate matter from Yellow River in Henan section. |
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