摘要
采集了商丘市包河6个位点的表层沉积物,用色谱-质谱对正构烷烃进行了分析,利用正构烷烃碳数分布特征和CPI指标等,对该市区的正构烷烃来源进行初步探讨。结果表明,正构烷烃碳数分布范围多数在nC13-nC31之间,分布类型只有一种,即高分子碳范围,碳优势指数为nC29,1<CPI<3,CPI1值与1接近,奇偶优势显著,指示了正构烷烃来源于陆源高等植物,以及汽车尾气和为化石燃料的不完全燃烧。该研究结果为包河的保护提出警示。
Six surface sediments from Baohe River were collected in Shangqiu City.The component of n-alkanes was analyzed by gas chromatograph-mass spectrometer. The source of n-alkanes was discussed by its distribution characteristics and CPI index.The result showed that n-alkanes was in the range of nC13-nC31.N-alkane distribution patterns were characterized by one mode.High molecular range for nC29 being MH,1CPI 3 and the value of CPI1 close to 1 illuminated the origin of n-alkanes from terrigenous plant,exhaust gas discharged from vehicles and incomplete burning of oil products.Our results indicated the caution for the protection of Baohe River.
出处
《环境保护科学》
CAS
2010年第5期33-35,共3页
Environmental Protection Science
基金
河南省重点科技攻关项目(082102350007
082102340004和072102350028)资助
河南省高校科技创新人才支持计划项目(2010HASTIT019)资助
关键词
包河
表层沉积物
正构烷烃
分布特征
污染来源
Baohe River Surface Sediment N-Alkanes Distribution Characteristics Pollution Source