Journal
ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 187, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1007/s10661-015-4427-4
Keywords
Microextraction; Ionic liquid; Spectrophotometry; Patent blue V; Food samples
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Funding
- Unit of the Scientific Research Projects of Gaziosmanpasa University [2012/45]
- Turkish Academy of Sciences
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Ultrasound-assisted ionic liquid-based dispersive liquid liquid microextraction procedure (UAIL-DLLME) was developed for determination of trace levels of patent blue V prior to its determination by UV-visible spectrophotometry. Patent blue V was extracted from 25-mL sample into a 100-mu L volume of ionic liquid, 1 -butyl- 3 -methylimidazolium hexafluorophosphate ([bmimil][PF6]), with the aid of sonication in an ultrasonic bath. Several variables affecting microextraction efficiency were optimized Under the optimum experimental conditions, the detection limit (3 s) was 0.68 mu g L-1, and the preconcentration factor was 100. The relative standard deviation for six replicate determinations of patent blue V was 4.5 A. The method was applied to the determination of patent blue V in food samples. The proposed procedure is effective, very simple, and fast.
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