Somaye Akbari, Azra Takhvar, Effat Souri, Reza Ahmadkhaniha, Ali Morsali, Mohammad reza Khoshayand, Mohsen Amini, Alireza Taheri
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引用次数: 0
Abstract
The extraction of nandrolone as a steroid hormone using fast methods is of high importance. This was done by dispersive micro-solid phase extraction in the presence of two widely used organometallic frameworks (MIL-53(Al) and ZIF-8). The extraction steps were optimized by an extensive study on the main factors affecting the absorption/desorption efficiency. The optimum conditions were obtained by design of experiments for the extraction and determination of nandrolone in a blank human plasma matrix. Maximum extraction of nandrolone was achieved in 8.5 min by 2.5 mg of MIL-53(Al) in the solution with 0.89% (w/v) salt concentration, while the maximum extraction by ZIF-8 as another sorbent required 10 min, 4.5 mg of sorbent, and 0.60% (w/v) of salt concentration. Batch experiments were carried out to find appropriate kinetic and isotherm models. Finally, the analytical validation of the proposed method was investigated. The dynamic range of the method was from 0.05 to 1 µg/mL. The precision (expressed as the relative standard deviation, RSD) and accuracy (expressed as the percentage error) of extraction by MIL-53(Al) were found 3.90 and 3.39%, respectively, while those by ZIF-8 were calculated as 4.59 and 4.50%, respectively. The proposed method was successfully applied for the determination of nandrolone in spiked samples, achieving high recovery rates of approximately 96% and 94% using MIL-53(Al) and ZIF-8.
期刊介绍：
The Journal of Analytical Chemistry is an international peer reviewed journal that covers theoretical and applied aspects of analytical chemistry; it informs the reader about new achievements in analytical methods, instruments and reagents. Ample space is devoted to problems arising in the analysis of vital media such as water and air. Consideration is given to the detection and determination of metal ions, anions, and various organic substances. The journal welcomes manuscripts from all countries in the English or Russian language.
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