Journal
TURKISH JOURNAL OF CHEMISTRY
Volume 41, Issue 6, Pages 955-966Publisher
Tubitak Scientific & Technological Research Council Turkey
DOI: 10.3906/kim-1611-51
Keywords
Aqueous two-phase system; tetracycline; HPLC; ionic liquid; surfactant
Funding
- Scientific and Technological Research Council of Turkey (TUBITAK) [115Z083]
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In this work, an ultrasonic-assisted surfactant/ionic liquid aqueous two-phase system (ATPS) extraction method was developed to extract six tetracycline antibiotics from food samples before their chromatographic determination using high performance liquid chromatography. The ATPS was formed with 1-allyl-3-methyl-imidazolium bromide, Triton X-100, and dipotassium hydrogen phosphate. The parameters including type and amount of surfactant, ionic liquid and salt, pH of sample solution, and sonication time were optimized. Under the optimized conditions, linear calibration curves of the six tetracyclines were obtained in the range of 10-500 mu g L-1 with > r(2) = 0.990 (n = 9). The proposed green analytical extraction method was applied to the analysis of tetracycline antibiotics in milk and honey samples with recovery of 50%-110% and 68%-117%, respectively.
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