HPLC法测定水中16种多环芳烃

以液-液萃取为原理，采用佛罗里硅土柱为净化手段，采用高效液相色谱测定水样中16种多环芳烃。实验结果表明，该方法可以成功分离16种PAHs及两种替代物，最低检出浓度可达到1．9～21ng．l^-1，相对标准偏差在0．16％-12．8％范围内，基体加标（除萘较低外）回收率达到72．3％-106％，替代物加标在76．9％～85．0％之间。实现了环境水体中痕量PAHs的定性与定量分析。

Determination of Sixteen Polycyclic Aromatic Hydrocarbons in Water by HPLC

The paper describes the determination of the 16 polycyclic aromatic hydrocarbons by High pergormance liqulid chromatoyraphy. The theory is liquid - liquid extraction and the extract is cleaned up through the Florisil solid - phase extraction column. The results obtained were as follows ：the method was successfully applied to the analysis of 16 PAlls and two substitutes with the detection limit 1.9 -21 ng.l^-1. The relative stardard deviation was among 0. 16% to 12. 8%, the recoveries of addition stardard of matrix and substitutes were 72. 3% - 106% and 76. 9% - 85. 0%. It was indicated that the method was suitable for the quantitatively and qualitatively determination of PAHs.