期刊
ANALYTICA CHIMICA ACTA
卷 885, 期 -, 页码 114-121出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2015.05.030
关键词
Sodium dodecyl sulfate; Fe3O4 nanoparticles; In-tube magnetic solid phase microextraction; Fluoroquinolones; Experimental design
资金
- Research Council of Chemistry and Chemical Engineering Research Center of Iran (CCERCI)
In-tube magnetic solid phase microextraction (in-tube MSPME) of fluoroquinolones from water and urine samples based on the use of sodium dodecyl sulfate (SDS) coated Fe3O4 nanoparticles packed tube has been reported. After the preparation of Fe3O4 nanoparticles (NPs) by a batch synthesis, these NPs were introduced into a stainless steel tube by a syringe and then a strong magnet was placed around the tube, so that the Fe3O4 NPs were remained in the tube and the tube was used in the in-tube SPME-HPLC/UV for the analysis of fluoroquinolones in water and urine samples. Plackett-Burman design was employed for screening the variables significantly affecting the extraction efficiency. Then, the significant factors were more investigated by Box-Behnken design. Calibration curves were linear (R-2 > 0.990) in the range of 0.1-1000 mg L-1 for ciprofloxacin (CIP) and 0.5-500 mg L-1 for enrofloxacin (ENR) and ofloxacin (OFL), respectively. LODs for all studied fluoroquinolones ranged from 0.01 to 0.05 mg L-1. The main advantages of this method were rapid and easy automation and analysis, short extraction time, high sensitivity, possibility of fully sorbent collection after analysis, wide linear range and no need to organic solvents in extraction. (C) 2015 Elsevier B.V. All rights reserved.
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