标准摘要
[中文适用范围]： ISO 7981 的本部分规定了液液萃取后采用高效薄层色谱法和荧光检测法测定饮用水中六种选定的 PAH。 这六种多环芳烃是：荧蒽、苯并[b]荧蒽、苯并[a]芘、苯并[k]荧蒽、茚并[1,2,3-cd]芘和苯并[ghi]苝（见表1）。 描述了一种筛选方法（方法 A），用于排除那些含量低于参考文献 [1]、[2]、[3] 和 [4] 中给出的限值 20% 的样品。 还描述了定量方法（方法 B），工作范围为 40 ng/l 至 240 ng/l（6 种 PAH 的总和）。 使用较小等份的样品可以测定较高的浓度。 经过一些修改，该方法也适用于地下水和中度污染的地表水的分析。 [外文原描述]： ISO 7981-1:2005 specifies the determination of six selected polycyclic aromatic hydrocarbons (PAH) in drinking water. The 6 PAH are: fluoranthene, benzo[ b ]fluoranthene, benzo[ a ]pyrene, benzo[ k ]fluoranthene, indeno[1,2,3- cd ]pyrene, and benzo[ ghi ]perylene The screening method (method A) described excludes those samples containing less than 20 % of the referenced limit values. The quantitative method (method B) described has a working range of 40 ng/l to 240 ng/l (sum of 6 PAH). Higher concentrations may be determined by using a smaller aliquot of the sample. With some modifications, this method is also applicable for the analysis of ground waters and moderately polluted surface waters.
英文名称Water quality — Determination of polycyclic aromatic hydrocarbons (PAH) — Part 1: Determination of six PAH by high-performance thin-layer chromatography with fluorescence detection after liquid-liquid extraction