UV-Vis Spectrophotometric Determination of Tetryl after Dispersive Liquid-Liquid Microextraction

Document Type : Research Article


1 Faculty of Pharmacy, Baqiyatallah University of Medical Sciences, Tehran, I.R. IRAN

2 Faculty of Marine and Oceanic Sciences, Khorramshahr University of Marine Sciences and Technology, Khorramshahr, I.R. IRAN


In this research Dispersive Liquid-Liquid Microextraction (DLLME) coupled with microvolume UV–Vis spectrophotometry has been used for the sensitive determination of tetryl. The method is based on the conversion of tetryl to anionic form in the alkaline medium and its extraction into CCL4 using Aliquat 336. In this method, there is no need to use extraction solvent because Aliquots 336, in addition to the formation of counter ions for the formation of ion-pair with anionic form of tetryl also acts as a disperser agent. In this method, the calibration graph was linear over the range of 10-700 ng/mL with a limit of detection of 2.1 ng/mL. The proposed method was successfully applied to the determination of tetryl in water and soil samples.


Main Subjects

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