Journal
JOURNAL OF SEPARATION SCIENCE
Volume 42, Issue 8, Pages 1620-1628Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201801152
Keywords
antidepressants; gas chromatography; microextraction; octanol; supramolecular solvents
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Funding
- Tarbiat Modares University
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In the present study, a supramolecular solvent was formed from reverse micelle aggregates of octanol. The proposed supramolecular solvent was used for rapid extraction of some antidepressants drugs including amitriptyline, imipramine, desipramine, maprotiline, sertraline, and doxepin from biological samples. Alkanol-based supramolecular solvents have a unique array of physicochemical properties, making them a very attractive alternative to replace organic solvents in analytical extractions. The parameters affecting the extraction of target analytes (i.e., the volume of tetrahydrofuran and octanol as the major components comprising the supramolecular solvent, chain length of alkanols, sample solution pH, salt addition, and ultrasonic time) were investigated and optimized by factor by factor optimization method. Under the optimum conditions, preconcentration factors of 470, 490, 460, 385, 370, and 430 were obtained for amitriptyline, doxepin, imipramine, desipramine, maprotiline, and sertraline, respectively. The linear ranges and coefficients of determination (R-2) were obtained in the range of 0.01-100 mu g/L and 0.9974-0.9991, respectively. Also the limits of detection (S/N = 3) of 0.003-0.03 mu g/L, and precisions (n = 5) of 4.9-8.9% were calculated. Finally, the method was successfully applied for the extraction of antidepressant drugs in biological samples, and relative recoveries in the range of 91-102% were obtained.
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