多环芳烃的几种理化参数与LC50的相关性研究

多环芳烃的几种理化参数与LC50的相关性研究

解静芳;吴弢;潘绍先

【期刊名称】《上海环境科学》

【年(卷),期】2000(000)010

【摘要】Studied on four physical and chemical parameters of polycyclic aromatic hydrocarbons (PAHs) (logoctanol-water partition coefficient, solubility in water, molecular connectivity index,relative specific retention vol-ume and the correlative coefficient of LC50, and established four monadic regression equations have been conducted;The results showed that the correlative coefficient of the four parameters, values, rkow, rsw, rx, and rvg(r), were

0.7266,0.8083,0.9488and 0.9570 respectively. and r examination showed

a highly significant relativity for the two latters. ComparedLC50 of the seven PAHs, which were estimated by monadic regression equations with the experimental values, theaverage relative errors were 58.84%, 32.23%,17.61% and 19.8% respectively. LC50 was estimated by 1X and Vg(r). Theaccuracy of estimation were 0.1613 and 0.1481 respectively. They are also high. The result of experiment showed thatin order of correlation between four parameters and LC50 were Vg(r)＞ 1X＞ Sw ＞Kow. A new method for estimating LC50 ofPAHs in pseudorasbora parva was also discussed.%对多环芳烃(PAHs)4种理化参数(KOow、Sw、1X、Vg(r)，)与LC50的相关关系进行了研究，建立了4种一元线性回归方程。结果