基于织物相吸附萃取和气相色谱-串联质谱法的分析方法的发展,以确定环境和娱乐用水中的紫外线过滤器

IF 2.5 Q1 Chemistry
Maria Celeiro , Ruben Acerbi , Abuzar Kabir , Kenneth G. Furton , Maria Llompart
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引用次数: 18

摘要

建立了织物相吸附萃取(FPSE) -气相色谱-串联质谱(GC-MS/MS)同时测定天然和休闲水体中11种紫外滤光剂(水杨酸乙己酯、水杨酸苄酯、同型水杨酸、苯甲酮-3、异戊甲氧基肉桂酸、4-甲基苄基樟脑、甲酰苯甲酸甲酯、乙己基肉桂酸乙己基甲氧基苯甲酸乙酯、2-乙基己基对二甲氨基苯甲酸乙酯和八烯)的方法。对影响FPSE过程的主要实验参数进行了优化,以获得最高的萃取效率。考察了溶胶-凝胶包覆FPSE介质的不同类型和尺寸、进样量、萃取时间、解吸溶剂的类型和体积。最佳条件是使用(2.0 × 2.5) cm2的FPSE装置和PDMS涂层提取20 mL水,提取20 min。目标化合物用0.5-1 mL乙酸乙酯进行定量解吸。该方法在线性度、精密度、重复性、重现性等方面均得到了满意的验证。在实际水基质中进行了不同浓度水平的回收率研究,以证明其适用性,获得的平均值约为90%,精度令人满意。在所有情况下lod都处于低ng L−1。最后,将验证的FPSE-GC-MS/MS方法应用于不同的实际样品,包括环境水(湖泊、河流、海水)和休闲水(游泳池),所研究的11种化合物中有8种的浓度在0.12-123 μg L−1之间。FPSE被认为是一种有效和简单的替代其他提取和微提取技术,用于分析水中的紫外线过滤器。由于没有观察到基质效应,因此可以通过标准溶液的常规校准进行定量,而无需执行完整的FPSE程序,因此与其他微萃取技术相比,具有更高的通量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Development of an analytical methodology based on fabric phase sorptive extraction followed by gas chromatography-tandem mass spectrometry to determine UV filters in environmental and recreational waters

Development of an analytical methodology based on fabric phase sorptive extraction followed by gas chromatography-tandem mass spectrometry to determine UV filters in environmental and recreational waters

A novel method based on fabric phase sorptive extraction (FPSE) followed by gas chromatography-tandem mass spectrometry (GC-MS/MS) has been validated for the simultaneous determination of 11 UV filters (ethylhexyl salicylate, benzyl salicylate, homosalate, benzophenone-3, isoamylmethoxycinnamate, 4-methylbenzylidenecamphor, methyl anthranilate, etocrylene, 2-ethylhexylmethoxycinnamate, 2-ethylhexyl p-dimethylaminobenzoate, and octocrylene), in natural and recreational waters. Major experimental parameters affecting FPSE procedure have been optimized to obtain the highest extraction efficiency. Different types and sizes of sol-gel coated FPSE media, sample volume, extraction time, and type and volume of desorption solvent were evaluated. The optimal conditions involved the use of a (2.0 × 2.5) cm2 FPSE device with PDMS based coating for the extraction of 20 mL of water for 20 min. The quantitative desorption of the target compounds was performed with 0.5–1 mL of ethyl acetate. The method was satisfactorily validated in terms of linearity, precision, repeatability and reproducibility. Recovery studies were performed at different concentration levels in real water matrices to show its suitability, obtaining mean values about 90% and satisfactory precision. LODs were at the low ng L−1 in all cases. Finally, the validated FPSE-GC-MS/MS method was applied to different real samples, including environmental water (lake, river, seawater) and recreational water (swimming-pool), where 8 out of the 11 studied compounds were detected at concentrations between 0.12-123 μg L−1. FPSE is proposed as an efficient and simple alternative to other extraction and microextraction techniques for the analysis of UV filters in waters. Since no matrix effects were observed, quantification could be carried out by conventional calibration with standard solutions, without the need to perform the complete FPSE procedure, thus allowing a higher throughput in comparison with other microextraction techniques.

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来源期刊
Analytica Chimica Acta: X
Analytica Chimica Acta: X Chemistry-Analytical Chemistry
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