Fully automated multi-residue method for trace level monitoring of polar pesticides by liquid chromatography

作者: J. Slobodnik , M.G.M. Groenewegen , E.R. Brouwer , H. Lingeman , U.A.Th. Brinkman

DOI: 10.1016/0021-9673(93)80099-T

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摘要: Abstract A fully automated liquid chromatographic method using on-line trace enrichment, gradient elution and diode-array detection for the level determination of polar pesticides in surface water is described. The system uses specially developed software form “user macros”, allowing control both cartridge exchange unit sample preparation chromatograph with detector by means Pascal Workstation computer that system. collected data are automatedly evaluated, i.e. , pollutants present at a concentration above an input treshold identified/determined report printed. Parameters such as sampling interval spectra, temperature analytical column compartment, wavelength/bandwidth ratios handling were optimized. validation results 27 presented. At analyte 1 μg/1 relative standard deviations retention times peak areas different types range 0.2–1.5% 1–15%, respectively. All calibration graphs linear 0.1–7 μg/1.

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