Di Muccio A, Ausili A, Vergori L, Camoni I, Dommarco R, Gambetti L, Santilio A, Vergori F
Laboratorio di Tossicologia Applicata, Istituto Superiore di Sanita, Rome, Italy.
Analyst. 1990 Sep;115(9):1167-9. doi: 10.1039/an9901501167.
A multi-cartridge system has been developed which, in a single step, performs the extraction and clean-up of organophosphate (OP) pesticide residues from oils and fatty extracts. A solution in hexane containing up to 1.8 g of lipidic material is loaded on to an Extrelut-3 column to which a silica-gel cartridge and a C18 silica cartridge have been connected in series. The OP pesticide residues are eluted with 15 ml of acetonitrile. Carry-over of fatty material is in the range 2-5 mg per 1.8 g of different oils, which makes the final solution amenable to capillary gas chromatography. Recoveries of 23 OP pesticides were in the range 82-111%. The whole procedure takes ca. 20 min and compares favourably with current procedures.
已开发出一种多柱系统，该系统能在一步操作中从油类和脂肪提取物中提取并净化有机磷（OP）农药残留。将含有高达1.8克脂质材料的己烷溶液加载到一个已串联连接硅胶柱和C18硅胶柱的Extrelut - 3柱上。用15毫升乙腈洗脱OP农药残留。每1.8克不同油类中脂肪物质的残留量在2 - 5毫克范围内，这使得最终溶液适合进行毛细管气相色谱分析。23种OP农药的回收率在82% - 111%之间。整个过程大约需要20分钟，与目前的方法相比具有优势。
