气相色谱法估算多环芳烃生物浓缩系数

• 作 者: 解静芳 吴弢 潘绍先 王晋 席中军
• 机 构: 山西大学环境科学系!太原030006,山西大学环境科学系!太原030006,山西大学环境科学系!太原030006,山西大学环境科学系!太原030006,山西大学环境科学系!太原030006
• 出 处: 分析化学
• 发表日期: 1998年10期
• 关键词: 生物浓缩系数 多环芳烃 色谱固定相 分子连接性指数 比保留体积 气相色谱法 甲基萘 统计检验 回归方程 同极性

提出用气相色谱相对比保留体积（Ｖｇ（ｒ））估算多环芳烃（ＰＡＨ）在鱼体内的生物浓缩系数（ＢＣＦ）。测定了草鱼对萘、联苯、β－甲基萘、２，３－二甲基萘、２，７－二甲基萘、苊、菲７种ＰＡＨ的ＢＣＦ。建立了在６种不同极性色谱固定相上的ＢＣＦ与Ｖｇ（ｒ）的一元回归方程和ＢＣＦ与Ｖｇ（ｒ）、一阶分子连接性指数（１ Ｘ）的二元回归方程。统计检验表明，两类回归方程总体显著相关，且方程的相关性不受固定相极性的影响。

The bioconcentration factor (BCF) of polycyclic aromatic hydrocarbons (PAH) in fish was estimated by comparing the relative retention volume (Vg (r)) of the gas chromatography. The BCFs of seven kinds of PAHs were determined for grass carp, including naphthalene, biphenyl, β-methylnaphthalene, 2,3-dimethylnaphthalene, 2,7-dimethylnaphthalene, acenaphthene and phenanthrene. The univariate regression equations of BCF and Vg (r) and the binary regression equations of BCF and Vg (r) and first order molecular connectivity index (1 X) were established on six different polar stationary phases. Statistical tests show that the two kinds of regression equations are significantly correlated overall, and the correlation of the equations is not affected by the polarity of the stationary phase.