Barco Mónica, Planas Carles, Palacios Oscar, Ventura Francesc, Rivera Josep, Caixach Josep
Mass Spectrometry Laboratory, Department of Ecotechnologies, IIQAB-CSIC, C/Jordi Girona 18-26, 08034-Barcelona, Spain.
Anal Chem. 2003 Oct 1;75(19):5129-36. doi: 10.1021/ac020708r.
A rapid method is described for the quantitative analysis of anionic, cationic, and nonionic surfactants in water samples by flow injection analysis coupled to electrospray ionization mass spectrometry (FIA/ESI-MS). All surfactants were isolated by liquid-liquid extraction and quantified using labeled triethoxylated nonylphenol ([13C6]-NP3EO) and sodium dibutylnaphthalenesulfonate as internal standards. FIA/ESI-MS was performed by alternating both positive and negative ionization modes, which allows simultaneous analysis of most common surfactants in a short time. Quality parameters of the method, such as linear range, repeatability, reproducibility, and limits of detection were studied. This method was applied to the analysis of wastewater treatment plant effluents from Catalonia (NE Spain).
本文描述了一种快速方法，通过流动注射分析与电喷雾电离质谱联用（FIA/ESI-MS）对水样中的阴离子、阳离子和非离子表面活性剂进行定量分析。所有表面活性剂均通过液液萃取分离，并使用标记的三乙氧基化壬基酚（[13C6]-NP3EO）和二丁基萘磺酸钠作为内标进行定量。FIA/ESI-MS通过交替使用正离子和负离子模式进行，可在短时间内同时分析大多数常见表面活性剂。研究了该方法的质量参数，如线性范围、重复性、再现性和检测限。该方法应用于加泰罗尼亚（西班牙东北部）污水处理厂出水的分析。
