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Spectrofluorimetric determination of the organophosphorus insecticide quinalphos in citrus fruits

✍ Scribed by F. García Sánchez; M. Hernández López; A. García Pareja

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 469 KB
Volume: 255
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(91)80061-w

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✦ Synopsis

The ample spect~~fluonmetnc method described for the detemunatmn of qumalphos m utrus f'nuts has a lm_ut of detecuox~ of 3 ng ml-' The extracted msecuude is weakly fluorescent and 1s hydrolyzed m alkalme m&mm to gwe the strongly fluorescent qumoxalm-Zol. Factors affcctmg the rate of hydrolyss are described m detad Methods arc developed based on normal and synchronous spcctroflwnmetry Rccovenes arc m the range 95-9946 with relative standard dcvmtxms 2 S-48 The method IS slutable for deterrrmung qumalphos m spllred citrus frmt The proposed metbod IS compared wth a bqmd-chromatograpbx method K9words Fluonmetry, Qumalphos

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On-line coupling of liquid chromatography and capillary gas chromatography for the determination of a trace pyrethroid insecticide in fruit extracts

✍ Modeste, Fabrice ;Caude, Marcel ;Devaux, Philippe 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 805 KB

## Abstract The following paper presents a fast, selective, sensitive, and automated procedure for the residue analysis of the pyrethroid insecticide acrinathrin in various fruit samples by on‐line combination of Liquid Chromatography (LC) with capillary Gas Chromatography (GC) and an Electron‐Capt