2015
DOI: 10.1002/jssc.201500714
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Pipette vial dispersive liquid–liquid microextraction combined with high‐performance liquid chromatography for the determination of benzoylurea insecticide in fruit juice

Abstract: A simple, sensitive, and efficient method of using a pipette vial to perform dispersive liquid-liquid microextraction based on the solidification of floating organic droplets was coupled with high-performance liquid chromatography (HPLC) and a diode array detector for the preconcentration and analysis of four benzoylurea insecticides in fruit juice. In this method, 1-dodecanol was used as an extractant, and a snipped pipette was used as an experimental vial to simplify the procedure of collecting and separatin… Show more

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Cited by 19 publications
(11 citation statements)
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“…In comparison with other liquid‐phase extraction methods, LPME methods have the advantages of ease of operation, low cost, low consumption of organic solvents, and the possibility of obtaining a high enrichment factor. So far, different modes of LPME including dispersive liquid–liquid microextraction, single drop microextraction, solidified floating organic drop microextraction, vortex‐assisted emulsification microextraction, ultrasound‐assisted emulsification microextraction, and hollow‐fiber liquid‐phase microextraction (HF‐LPME) have been developed and used for the extraction of various compounds. Among these LPME methods, only ultrasound‐assisted emulsification microextraction, vortex‐assisted surfactant‐enhanced emulsification microextraction, ultrasound‐assisted surfactant‐enhanced emulsification microextraction, and surfactant‐solvent‐based quaternary component emulsification microextraction have been used for extraction of benzimidazole compounds.…”
Section: Introductionmentioning
confidence: 99%
“…In comparison with other liquid‐phase extraction methods, LPME methods have the advantages of ease of operation, low cost, low consumption of organic solvents, and the possibility of obtaining a high enrichment factor. So far, different modes of LPME including dispersive liquid–liquid microextraction, single drop microextraction, solidified floating organic drop microextraction, vortex‐assisted emulsification microextraction, ultrasound‐assisted emulsification microextraction, and hollow‐fiber liquid‐phase microextraction (HF‐LPME) have been developed and used for the extraction of various compounds. Among these LPME methods, only ultrasound‐assisted emulsification microextraction, vortex‐assisted surfactant‐enhanced emulsification microextraction, ultrasound‐assisted surfactant‐enhanced emulsification microextraction, and surfactant‐solvent‐based quaternary component emulsification microextraction have been used for extraction of benzimidazole compounds.…”
Section: Introductionmentioning
confidence: 99%
“…Dispersive liquid–liquid microextraction (DLLME) is one of the most recently developed LPME methods and was first introduced in 2006 by Rezaee et al. .…”
Section: Introductionmentioning
confidence: 99%
“…Dispersive liquid-liquid microextraction (DLLME) is one of the most recently developed LPME methods [8] and was first introduced in 2006 by Rezaee et al [9]. In DLLME, a small amount of the extraction solvent is dispersed in the sample by quick injection of the mixture (extraction solvent/dispersion solvent) into the sample.…”
Section: Introductionmentioning
confidence: 99%
“…This is most probably facilitated by the presence of large surface areas of contact between the extraction solvent and the aqueous phase, during formation of cloudy solution [18] [23]. In DLLME, extraction time is specifically defined as the time interval between injecting the mixture of disperser solvent and extraction solvent into the sample solution and starting centrifugation [39]. Accordingly, in the current study the effect of extraction time on the extraction technique was investigated over the range of 1 -5 min.…”
Section: Effect Of the Extraction Timementioning
confidence: 99%
“…In DLLME procedures, optimizing the time required for phase separation is also important analytical step, in order to obtain a clear extract [39]. In order to establish the optimum conditions, centrifugation time was varied from 1 -5 min, at constant speed of 4000 rpm.…”
Section: Effect Of the Centrifugation Timementioning
confidence: 99%