BS ISO 14154-2005 土质.一些选定的氯苯酚的测定.电子俘获检测的气相色谱法

标准号：BS ISO 14154-2005
中文标准名称：土质.一些选定的氯苯酚的测定.电子俘获检测的气相色谱法
英文标准名称：Soil quality - Determination of some selected chlorophenols - Gas-chromatographic method with electron-capture detection
标准类型：Z18
发布日期：2005/2/15 12:00:00
实施日期：2005/2/15 12:00:00
中国标准分类号：Z18
国际标准分类号：13.080.10
适用范围：This International Standard describes the gas chromatographic determination of 15 chlorophenols (2,3-, 2,4- 2,5-, 2,6-, 3,4- and 3,5-dichlorophenol; 2,3,4-, 2,3,5-, 2,3,6-, 2,4,5-, 2,4,6- and 3,4,5-trichlorophenol, 2,3,4,5- and 2,3,4,6-tetrachlorophenol and pentachlorophenol) in soil samples. This method can also be applied to other solid samples such as sediments and solid wastes. This International Standard describes an acid-base liquid extraction, followed by acetylation and then liquid/liquid extraction. Determination of mass concentration is then carried out by gas chromatography and electron-capture detection. This method is applicable to chlorophenols at the lowest mass concentrations ranging from approximately 0,01 mg/kg to 0,05 mg/kg depending on the component sensitivity and the quantity of sample used. In some cases complete separation of isomers cannot be achieved, in which case the sum is reported (for instance 2,4- and 2,5-dichlorophenols).