ISO 23631:2006 水质 农药茅草枯, 三氯乙酸和选用的盐杆菌酸的测定-在流体液体萃取和衍生后采用气相色谱（GC-ECD 和/或GC-MS 监测）的方法

标准编号：ISO 23631:2006

中文名称：水质 农药茅草枯, 三氯乙酸和选用的盐杆菌酸的测定-在流体液体萃取和衍生后采用气相色谱（GC-ECD 和/或GC-MS 监测）的方法

英文名称：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 deriva

发布日期：2006-02

标准范围

ISO 23631:2006规定了在使用重氮甲烷进行液-液萃取和衍生后，通过气相色谱法（GC-ECD和/或GC-MS检测）测定地下水和饮用水中的达拉蓬、三氯乙酸（TCA）和选定的卤乙酸的方法。根据基质的不同，该方法适用于0.5至10微克/升的浓度范围。TCA和dalapon的有效报告限值约为每升0.05微克。电子捕获检测器（ECD）的检测通常会导致较低的检测限。质谱（MS）检测允许分析物识别。

ISO 23631:2006 specifies a method for the determination of dalapon, trichloroacetic acid (TCA) and selected haloacetic acids in ground water and drinking water by gas chromatography (GC-ECD and/or GC-MS detection) after liquid-liquid-extraction and derivatization using diazomethane. Depending on the matrix, the method is applicable to a concentration range from 0,5 to 10 micrograms per litre. The validated reporting limit of TCA and dalapon is about 0,05 micrograms per litre. Detection by electron-capture detector (ECD) in general leads to lower detection limits. Detection by mass spectrometry (MS) allows analyte identification.

标准预览图