同步荧光法同时测定黄土中的菲和萘

Simultaneous determination of phenanthrene and naphthalene in loess soils with synchronous fluorimetry

建立了同时测定菲和萘混合液中二组分的固定波长同步荧光光谱法.菲和萘的线性范围分别为0.001～0.101mg/L和0.0025～0.25mg/L,检出限分别为0.47ng/mL和0.14ng/mL,相对标准偏差分别为0.48%和0.89%(n=12).此方法可用于研究黄土对菲、萘混合液吸附平衡后上清液中的菲和萘的同时测定.结果表明,黄土对菲和萘的吸附曲线满足Freundlich方程,为预测和治理土壤污染提供了一种快速简便的测试手段.

The synchronous flourimetry has been established for simultaneous determination of phenanthrene and naphthalene in the mixed liquor of these two components. The linear ranges of phenanthrene and naphthalene are 0.001~ 0.101mg/L and 0.0025~0.25mg/L, their detection limits are 0.47ng/mL and 0.14ng/mL, and their relative standard deviations are 0.48% and 0.89% (n=12), respectively. This method could be used to study the simultaneous determination of phenanthrene and naphthalene in the upper clear liquor after the sorption equilibrium of the loess soils on the mixed liquor. The results show that the sorption isotherm of natural loess soils on phenanthrene and naphthalene satisfies Freundlich-Equation, and provides a fast and simple way to forecast and govern pollution of soils.