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用滤纸基质室温燐光法分析多环芳烃。以醋酸铊TlAc/醋酸铅Pb(Ac)_2(1∶1mol)的乙醇水(50％V/V)溶液为重原子微扰剂,对国产分析滤纸,玻璃纤维滤膜和醋酸纤维滤膜等9种不同的基质材料测定芘的燐光信号强度并进行了比较。对芘、荧蒽、苯并(e)芘、苯并(a)芘、苯并(ghi)芘和晕苯的混合物样品进行了测定。对煤飞灰和燃煤排放物样品中的芘和苯并(a)芘进行了定量分析,并用高效液相色谱法对测定结果进行验证。对芘和苯并(a)芘的检测限分别达到10~(-10)和10~(-9)g数量级。本文还对进一步提高灵敏度的问题进行了讨论。
Polycyclic aromatic hydrocarbons (PAHs) were analyzed by filter paper at room temperature. With thalli thallium TlAc / Pb (Ac) 2 (1: 1mol) ethanol water (50% V / V) solution as heavy atom perturbation agent, domestic analytical filter paper, glass fiber filter and acetate fiber filter 9 Different matrix materials were used to determine the clump signal intensity of pyrene and compared. Pyrene, fluoranthene, benzo (e) pyrene, benzo (a) pyrene, benzo (ghi) pyrene and corona benzene mixture samples were measured. Pyrene and benzo (a) pyrene in coal fly ash and coal-fired emissions samples were quantitatively analyzed and the results were validated by high performance liquid chromatography. The detection limits of pyrene and benzo (a) pyrene reached 10 ~ (-10) and 10 ~ (-9) g, respectively. This article also discusses the issue of further increasing the sensitivity.