期刊
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
卷 99, 期 3, 页码 1117-1125出版社
WILEY
DOI: 10.1002/jsfa.9279
关键词
polycyclic aromatic hydrocarbons; drinks; continuous solid-phase extraction; gas chromatography-mass spectrometry
BACKGROUND Polycyclic aromatic hydrocarbons (PAHs) are a large group of contaminants that can reach drinks in various ways. Their assessment in terms of food safety is needed as a priority. The present study developed a methodology to estimate their presence in several types of drinks. RESULTS In this work, a method was developed for detecting and quantifying PAHs in drinks using a semi-automated, solid-phase extraction closed system for clean up and isolation, and gas chromatography-mass spectrometry (GC-MS) for determination. The proposed method is accurate, precise, and sensitive, with low limits of detection (0.02-0.6 ng L-1), low relative standard deviations (< 6.5%), and high recoveries (90-103%). Its high flexibility allows application to a variety of drinks from (Spain) including distillates, beer, wine, cider, soft drinks, fruit juice, tea, and coffee. CONCLUSION This methodology allows the detection of this family of compounds at trace levels using low quantities of sample and solvents. Most of the samples studied contained two or more of the Environmental Protection Agency's (EPA's) 16 PAH priority pollutants, albeit at levels below the legally allowed limit. (c) 2018 Society of Chemical Industry
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