Fernandez-Alba A R, Valverde A, Agüera A, Contreras M, Chiron S
Pesticide Residues Research Group, Facultad de Ciencias de Almería, Universidad de Almeria, Spain.
J Chromatogr A. 1996 Jan 15;721(1):97-105. doi: 10.1016/0021-9673(95)00764-4.
An HPLC method is described for the determination of imidacloprid residues in vegetables at levels ranging from 0.01 to 0.60 mg/kg. The selection of the extraction and clean-up procedure is discussed. Spectral data obtained with diode-array detection allow the identification of imidacloprid residues. Thermospray mass spectrometric studies were carried out in combination with HPLC. The mean recoveries and standard deviations were 95% and 4.7%, respectively, in the various crops tested. Registration of the analytical results for a control sample in quality control charts demonstrated the performance of the method. Data for incurred residues of imidacloprid in vegetable samples routinely applying the proposed method are also presented.
本文描述了一种用于测定蔬菜中吡虫啉残留量的高效液相色谱法，残留量范围为0.01至0.60 mg/kg。文中讨论了萃取和净化程序的选择。采用二极管阵列检测获得的光谱数据有助于鉴定吡虫啉残留。结合高效液相色谱法进行了热喷雾质谱研究。在所测试的各种作物中，平均回收率和标准偏差分别为95%和4.7%。在质量控制图中记录对照样品的分析结果，证明了该方法的性能。文中还给出了常规应用该方法测定蔬菜样品中吡虫啉残留量的数据。
