ISO 22155:2011 土壤质量 挥发性芳香烃和卤代烃与选定醚的气相色谱测定 静态顶空法

标准编号：ISO 22155:2011

中文名称：土壤质量 挥发性芳香烃和卤代烃与选定醚的气相色谱测定 静态顶空法

英文名称：Soil quality — Gas chromatographic determination of volatile aromatic and halogenated hydrocarbons and selected ethers — Static headspace method

发布日期：2011-04

标准范围

ISO 22155:2011规定了一种静态顶空法，用于定量气相色谱法测定土壤中挥发性芳香烃和卤代烃以及选定的脂肪族醚。ISO 22155:2011适用于所有类型的土壤。测定限取决于所使用的检测系统和用于提取土壤样品的甲醇等级的质量。在ISO 22155:2011规定的条件下，适用以下测定限（以干物质为基础表示）:使用气相色谱/火焰离子化检测（GC/FID）时的典型测定限:挥发性芳香烃:0.2 mg/kg；脂肪族醚，如甲基叔丁基醚(MTBE)和叔戊基甲基醚(TAME):0.5 mg/kg。使用气相色谱/电子捕获检测（GC/ECD）时的典型测定限:挥发性卤代烃:0.01 mg/kg至0.2 mg/kg。通过使用具有选定离子检测的质谱(MS)，可以实现某些化合物的测定下限。

ISO 22155:2011 specifies a static headspace method for quantitative gas chromatographic determination of volatile aromatic and halogenated hydrocarbons and selected aliphatic ethers in soil.ISO 22155:2011 is applicable to all types of soil.The limit of determination is dependent on the detection system used and the quality of the methanol grade used for the extraction of the soil sample.Under the conditions specified in ISO 22155:2011, the following limits of determination apply (expressed on the basis of dry matter):Typical limit of determination when using gas chromatography/flame ionization detection (GC/FID):

• volatile aromatic hydrocarbons: 0,2 mg/kg;
• aliphatic ethers as methyl tert-butyl ether (MTBE) and tert-amyl methyl ether (TAME): 0,5 mg/kg.

Typical limit of determination when using gas chromatography/electron capture detection (GC/ECD):

• volatile halogenated hydrocarbons: 0,01 mg/kg to 0,2 mg/kg.

Lower limits of determination can be achieved for some compounds by using mass spectrometry (MS) with selected ion detection.

标准预览图