Liquid chromatographic determination of imazosulfuron in drinking water and in soil using ultraviolet detection
Articolo
Data di Pubblicazione:
1999
Citazione:
Liquid chromatographic determination of imazosulfuron in drinking water and in soil using ultraviolet detection / M. Ventriglia, P. Restani, P. Morrica, P. David, L. De Angelis, C.L. Galli. - In: JOURNAL OF CHROMATOGRAPHY A. - ISSN 0021-9673. - 857:1(1999 Oct 01), pp. 327-330. [10.1016/S0021-9673(99)00730-X]
Abstract:
Reversed-phase liquid chromatography (LC) is used to determine a relatively new sulfonylureic herbicide, imazosulfuron, 1-(2-chloroimidazo-[1,2-a] pyridin-3-ylsulfonyl)-3-(4,6-dimethoxy-2-pyrimidinyl)-urea (TH-913), in drinking water and in soil. TH-913 is extracted from water using solid-phase extraction on C18 bonded silica. Soil samples (20 g) are extracted with 300 ml of methanol-water (50:50) and the acidified extracts are transferred onto Sep-Pak C18 and processed as described for water samples. Off-line desorption is done with 20 ml of methanol-water (50:50). The eluate is evaporated to dryness, the residue dissolved in acetonitrile and analysed by LC with UV detection at 238 nm. The recoveries of TH-913 from water were over 95% (at 0.05 microg/l level) and from soil over 90% (at 0.005 mg/kg level)
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Ventriglia, P. Restani, P. Morrica, P. David, L. De Angelis, C.L. Galli
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