Aznar Ramón, Albero Beatriz, Sánchez-Brunete Consuelo, Miguel Esther, Martín-Girela Isabel, Tadeo José L
Departamento de Medio Ambiente, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de la Coruña, Km. 7, 28040, Madrid, Spain.
Departamento de Producción Agraria. Grupo de Agroenergética, Universidad Politécnica de Madrid (UPM), 28040, Avenida Complutense s/n, Madrid, Spain.
Environ Sci Pollut Res Int. 2017 Mar;24(9):7911-7920. doi: 10.1007/s11356-016-6327-8. Epub 2016 Feb 24.
A multiresidue method was developed for the simultaneous determination of 31 emerging contaminants (pharmaceutical compounds, hormones, personal care products, biocides, and flame retardants) in aquatic plants. Analytes were extracted by ultrasound-assisted matrix solid-phase dispersion (UA-MSPD) and determined by gas chromatography-mass spectrometry after sylilation, The method was validated for different aquatic plants (Typha angustifolia, Arundo donax, and Lemna minor) and a semiaquatic cultivated plant (Oryza sativa) with good recoveries at concentrations of 100 and 25 ng g wet weight, ranging from 70 to 120 %, and low method detection limits (0.3 to 2.2 ng g wet weight). A significant difference of the chromatographic response was observed for some compounds in neat solvent versus matrix extracts, and therefore, quantification was carried out using matrix-matched standards in order to overcome this matrix effect. Aquatic plants taken from rivers located at three Spanish regions were analyzed, and the compounds detected were parabens, bisphenol A, benzophenone-3, cyfluthrin, and cypermethrin. The levels found ranged from 6 to 25 ng g wet weight except for cypermethrin that was detected at 235 ng g wet weight in O. sativa samples.
建立了一种多残留方法，用于同时测定水生植物中的31种新兴污染物（药物化合物、激素、个人护理产品、杀生物剂和阻燃剂）。通过超声辅助基质固相分散（UA-MSPD）提取分析物，并在硅烷化后通过气相色谱-质谱法进行测定。该方法在不同水生植物（狭叶香蒲、芦竹和浮萍）和一种半水生栽培植物（水稻）中得到验证，在100和25 ng g湿重浓度下回收率良好，范围为70%至120%，方法检测限低（0.3至2.2 ng g湿重）。对于一些化合物，在纯溶剂与基质提取物中的色谱响应存在显著差异，因此，为克服这种基质效应，使用基质匹配标准进行定量。对取自西班牙三个地区河流的水生植物进行了分析，检测到的化合物有对羟基苯甲酸酯、双酚A、二苯甲酮-3、氟氯氰菊酯和氯氰菊酯。除氯氰菊酯在水稻样品中检测到的含量为235 ng g湿重外，其他化合物的含量范围为6至25 ng g湿重。
