DIN EN 12918-1999 水质.用二氯甲烷萃取分析法和气相色谱分析法测定水中的对硫磷、甲基对硫磷和其它有机磷化合物
Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis; German version EN 12918:1999
The document describes a chemical method for the determination of organophosphorus compounds in water. After extraction with dichloromethane or a solid phase extraction, the concentration with be determined by gaschromatography.#,,#