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A Natural Monoterpene Enol for Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Droplets for Determination of Benzophenone Compounds in Water Samples

文献类型： 外文期刊

作者： Zhang, Xian 1 ; Zhang, Luyun 2 ; Zheng, Dan 1 ; Xia, Zhenzhen 1 ; Peng, Maomin 1 ; Sun, Danling 3 ; Hu, Xizhou 1 ; Peng, Xitian 1 ;

作者机构： 1.Hubei Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Hubei Key Lab Nutr Qual & Safety Agroprod, Wuhan 430064, Peoples R China

2.Jinan Univ, Sch Med, Guangzhou 510632, Peoples R China

3.Hubei Univ Chinese Med, Coll Lab Med, Wuhan 430065, Peoples R China

关键词： alpha-terpineol; dispersive liquid-liquid microextraction (DLLME); solidification of floating organic droplet (SFO); benzophenone compounds

期刊名称：SEPARATIONS （ 影响因子：2.6； 五年影响因子：2.7 ）

ISSN：

年卷期： 2023 年 10 卷 1 期

页码：

收录情况： SCI

摘要： In the current study, an effective and simple procedure of extraction for the four benzophenone compounds from water samples was achieved by dispersive liquid-liquid microextraction (DLLME) based on the solidification of floating organic droplets (SFO) with a natural monoterpene enol as the extractant. As a natural, high solidification point, inexpensive, and environmentally friendly hydrophobic solvent, alpha-terpineol was selected firstly as an extractant for DLLME and could be collected and transferred easily after extraction by solidification at a lower temperature. Several main parameters closely related to extraction efficiencies, such as volume of extractant, extraction time, pH and salt concentration of the sample solution, temperature, and time of the solidification process, were investigated in detail. The results showed that the established method had good extraction performance for benzophenone compounds with enrichment factors in the range of 29-47. Furthermore, the linearities were over the range of 2-2000 mu g/L, and the limits of detection were 0.12-0.53 mu g/L for four benzophenone compounds. The recoveries ranged from 80.2% to 108.4%, with RSDs (intra- and inter-assay) less than 8.5%. At last, the method applicability was investigated by the determination of the benzophenone compounds in aqueous solutions, and satisfactory recoveries (83.0-107.0%) were acquired. Taken together, alpha-terpineol, a natural monoterpene enol, was first used as an extractant of DLLME-SFO, which provided an alternative method with simplicity and rapidity for the determination of benzophenone compounds in aqueous samples.

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