ISO 23631-2006 水质.对茅草枯、三氯乙酸和选定的含卤素醋酸的测定.液-液萃取和衍生后的气相色谱法(GC-ECD和/或GC-MS检测法)

标准号：ISO 23631-2006
中文标准名称：水质.对茅草枯、三氯乙酸和选定的含卤素醋酸的测定.液-液萃取和衍生后的气相色谱法(GC-ECD和/或GC-MS检测法)
英文标准名称：Water quality - Determination of dalapon, trichloroacetic acid and selected haloacetic acids - Method using gas chromatography (GC-ECD and/or GC-MS detection) after liquid-liquid extraction and derivatization
标准类型：Z16
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：Z16
国际标准分类号：13.060.50
适用范围：This International Standard specifies a method for the determination of dalapon, trichloroacetic acid (TCA) andselected haloacetic acids (see Table 1) in ground water and drinking water by gas chromatography (GC-ECDand/or GC-MS detection) after liquid-liquid-extraction and derivatization using diazomethane. Depending onthe matrix, the method is applicable to a concentration range from 0,5 µg/l to 10 µg/l. The validated reportinglimit of TCA and dalapon is about 0,05 µg/l (see Table C.1). Detection by electron-capture detector (ECD) ingeneral leads to lower detection limits. Detection by mass spectrometry (MS) allows analyte identification.This method may be applicable as well to compounds not mentioned in Table 1 or to other types of water.However, it is necessary to verify the applicability of this method for these special cases.