Determination of Fungicides in Fruit Juice by Ultrasound-Assisted Dispersive Liquid–Liquid Microextraction Based on Solidification of Floating Organic Solvent Droplets Followed by High Performance Liquid Chromatography. (27th November 2019)

• Record Type: Journal Article
• Authors: Fan, Run-Zhen; Liu, Congyun; Jiang, Wenqing; Wang, Xiaonan; Liu, Fengmao
• Is Part Of: Journal of AOAC International. Volume 97:Number 1(2014)
• Page Start: 183
• Page End: 187
• Publication Date: 2019-11-27
• Subjects: Agricultural chemistry -- Periodicals; Food -- Analysis -- Periodicals; 543
• DOI: 10.5740/jaoacint.12-194
• Languages: English
• ISSNs: 1060-3271

Abstract

Abstract: Ultrasound-assisted dispersive liquid–liquid microextraction (UA-DLLME) based on solidification of the floating organic solvent droplets (SFO) combined with HPLC was used for determination of five fungicides in fruit juice samples. 1-Dodecanol, which has a low density and low toxicity, was used as the extraction solvent in UA-DLLME. The solidification of floating organic dropletsfacilitates the transfer of analytes from the aqueous phase to the organic phase. This method was easy, quick, inexpensive, precise, and linear over a wide range. Under the optimized conditions, the enrichment factors for a 5 mL fruit juice sample were 25 to 56, and the LODs for the five fungicides ranged from 5 to 50 μg/L. The average recoveries ranged from 71.8 to 118.2% with RSDsof 0.9 to 13.9%. Application of the DLLME-SFO technique allows successful separation and preconcentration of the fungicides at a low concentration level in fruit juice samples.