標準號：ISO 23631-2006
中文標準名稱：水質.對茅草枯、三氯乙酸和選定的含鹵素醋酸的測定.液-液萃取和衍生后的氣相色譜法(GC-ECD和/或GC-MS檢測法)
英文標準名稱：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
標準類型：Z16
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Z16
國際標準分類號：13.060.50
適用范圍：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.