HPLC荧光检测大气环境中苯并(a)芘及分布规律的研究

苯并(a)是强致癌物,被认为是环境中有多环芳烃类化合物存在的指标,本文使用美国光谱物理公司的高效波相色谱仪,以甲醇/水为流动相,采用spheri-5,RP-18柱及FL2000荧光检测器完成了大气颗粒物中BaP的测定,其加标回收率为91％,变异系数<5％,本方法最小检出限为0.02ng。同时,以马鞍山市大气环境中苯并(a)芘监测数据为第一手资料,对苯并(a)芘的分布状况、规律、危害作了研究。

THE STUDY ON DISTRIBUTION REGULAR AND DETECTIONMETHOD OF THE HPLC FLUORESCENCE OF BAP INTHE AIR ENVIRONMENT

Bap is carcinogenic substance which has strong effect. It is thought as the index of the content of polycyclic aromatic compound. The U.S. EPB thinks it as the priority monitoring pollutant. In this article, the detection of Bap in the air grain is finished with CH3OH/ H2O, Which is used as the flow phase , spheri - 5, RP - 18 column and FL - 2000 flur - escence detector, Which are parts of the HPLC of the S. P. C of the U.S. The standard addition recovery rate is 91 % . The coefficient of rariation is less than 5% .The detection limit of the method is 0. 02 ng, On the basis of the first - hand monitor data of Bap in the air environment of the Maanshang City, this article is made some research on the distribution condition, regular and harm.