Simultaneous determination of phenmedipham, desmedipham, and ethofumesate in a pesticide formulation by normal-phase high-performance liquid chromatography

• Autorzy: Velkoska-Markovska L. , Petanovska-Ilievska B. , Vodeb L.
• Języki publikacji: EN

Abstrakty

EN

A normal-phase high-performance liquid-chromatographic method has been developed for simultaneous quantitative analysis of phenmedipham, desmedipham, and ethofumesate in a pesticide formulation. Analysis was performed on a 25 cm × 0.4 cm, 5- µm particle, CN column with n-hexane-dichloromethane 40:60 (v/v) as mobile phase at a flow rate of 1 mL min^-1. UV detection was performed at 270 nm; the constant column temperature was 25°C. The run time under these chromatographic conditions was less than 8 min. Calibration plots were linear in the concentration range 76-380 µg mL^-1 for phenmedipham, 72-360 µg mL^-1 for desmedipham, and 52-260 µg mL^-1 for ethofumesate. Statistical evaluation by analysis of variance showed the intra-day repeatability (n = 8) and inter-day precision (n = 3) of the assay were satisfactory. The sensitivity of the method, as the limits of detection (LOD) and quantification (LOQ) for each active ingredient, was also determined.

• Wydawca: University of Silesia in Katowice ; Akademiai Kiado
• Czasopismo: Acta Chromatographica
• Rocznik: 2008
• Tom: Vol. 20, no. 1
• Strony: 109--118
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Velkoska-Markovska L.

autor

Petanovska-Ilievska B.

autor

Vodeb L.

• Laboratory for Pesticide Formulation Control, Department of Chemistry, Faculty of Agricultural Sciences and Food, the "St. Cyril and Methodius" University, Bul.: "Aleksandar Makedonski" bb, P.O. Box 297, 1000 Skopje, Republic of Macedonia

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