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- Title
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.
- Authors
RUN-ZHEN FAN; CONGYUN LIU; WENQING JIANG; XIAONAN WANG; FENGMAO LIU
- 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 droplets facilitates 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 RSDs of 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.
- Subjects
FRUIT juices -- Contamination; FUNGICIDE residues; LIQUID-liquid extraction; SOLIDIFICATION; ORGANIC solvents; HIGH performance liquid chromatography
- Publication
Journal of AOAC International, 2014, Vol 97, Issue 1, p183
- ISSN
1060-3271
- Publication type
Article
- DOI
10.5740/jaoacint.12-194