Rapid determination of abamectin in lettuce and cucumber by high-performance liquid chromatography
article
A rapid, sensitive and reliable method is presented for the determination of trace amounts of abamectin in lettuce and cucumber. Abamectin consists of ≥ 80% avermectin B1a and ≤ 20% avermectin B1b. Vegetables were extracted with ethyl acetate and the extract was purified by solid-phase extraction using Sep-Pak silica cartridges. The purified extracts were analysed by high-performance liquid chromatography with a 5-μm Zorbax ODS column and UV detection under isocratic conditions. The method yields recoveries for avermectin B1a and B1b of 76-109% in the 0.054-0.54 mg/kg range. The limit of detection of the method is 40 μg/kg each of avermectin B1a and B1b in vegetables.
Chemicals/CAS: abamectin, 71751-41-2; Insecticides; Ivermectin, 70288-86-7
Chemicals/CAS: abamectin, 71751-41-2; Insecticides; Ivermectin, 70288-86-7
Topics
TNO Identifier
48722
ISSN
00219673
Source
Journal of Chromatography, 553, pp. 299-304.
Pages
299-304
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