Tan Yimeng, Tang Tao, Yang Sandong, Xia Mingzhu, Wang Fengyun, Li Tong
Institute of Industrial Chemistry, Nanjing University of Science & Technology, Nanjing 210094, China.
Dalian Elite Analytical Instruments Co., Ltd., Dalian 116023, China.
Se Pu. 2017 Sep 8;35(9):1003-1007. doi: 10.3724/SP.J.1123.2017.06004.
Supramolecular solvent (SUPRAS) is a nano-structured liquid generated from amphiphiles through a sequential self-assembly process. It is an efficient and excellent solvent for the sample extraction. In this paper, a method to directly extract and rapidly analyze polycyclic aromatic hydrocarbons (PAHs) in water samples by high performance liquid chromatography-fluorescence detection (HPLC-FLD) was developed. The composition and amount of SUPRAS were optimized and practical samples were tested. It indicated that the combination of tetrahydrofuran and 1-octanol was a suitable SUPRAS for the extraction of four PAHs with recoveries between 89.08% and 102.47% and relative standard deviations (RSDs) from 1.38% to 3.92% (=5). Results showed a good linearity of four PAHs with the correlation coefficients () more than 0.999. The limits of detection (LODs) ranged from 1.26 to 9.23 ng/L. The proposed pretreatment method greatly reduces the analysis time. And the solvent-less approach is in accordance with the development trend of green chemistry and of great application prospects.
超分子溶剂（SUPRAS）是一种通过两亲分子的连续自组装过程生成的纳米结构液体。它是用于样品萃取的高效且优良的溶剂。本文开发了一种通过高效液相色谱-荧光检测（HPLC-FLD）直接萃取并快速分析水样中多环芳烃（PAHs）的方法。对超分子溶剂的组成和用量进行了优化，并对实际样品进行了测试。结果表明，四氢呋喃和1-辛醇的组合是萃取四种多环芳烃的合适超分子溶剂，回收率在89.08%至102.47%之间，相对标准偏差（RSDs）为1.38%至3.92%（n = 5）。结果表明四种多环芳烃具有良好的线性，相关系数（r）大于0.999。检测限（LODs）范围为1.26至9.23 ng/L。所提出的预处理方法大大缩短了分析时间。并且这种无溶剂方法符合绿色化学的发展趋势，具有广阔的应用前景。
