PMID- 30177269 OWN - NLM STAT- MEDLINE DCOM- 20181011 LR - 20181011 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1571 DP - 2018 Oct 12 TI - On-line combining monolith-based in-tube solid phase microextraction and high-performance liquid chromatography- fluorescence detection for the sensitive monitoring of polycyclic aromatic hydrocarbons in complex samples. PG - 29-37 LID - S0021-9673(18)30960-9 [pii] LID - 10.1016/j.chroma.2018.07.077 [doi] AB - An automated and sensitive method, consisting of monolith-based in-tube solid-phase microextraction (IT-SPME) coupled with high-performance liquid chromatography-fluorescence detection (HPLC-FLD), was developed for the monitoring of polycyclic aromatic hydrocarbons (PAHs) in water and milk samples. To enrich PAHs, a new poly (9-vinylanthracene-co-ethylene dimethacrylate) monolith was in-situ prepared and used as the adsorbent of IT-SPME. Various parameters affecting the extraction performance were investigated thoroughly. Under the optimal conditions, the synthesized monolith-based IT-SPME could enrich target PAHs effectively through pi-pi and hydrophobic interactions. Moreover, the developed on-line IT-SPME-HPLC-FLD method displayed satisfactory analytical merits for PAHs. The limits of detection (S/N = 3) for PAHs in water and milk samples were in the ranges of 0.017-0.23 ng/L and 0.10-2.36 ng/L, respectively. The relative standard deviations (RSDs) for intra-day and inter-day precisions with different spiked concentrations were below 9.8% and 11%, respectively. Finally, the proposed method was successfully applied to quantify ultra-trace target PAHs in water and milk samples. Several ng/L level PAHs were detected. Spiked recoveries achieved for water and milk samples were in the ranges of 78.5-118% and 75.5-119%, respectively. The RSDs varied from 0.30% to 10% for all analytes in all samples. In comparison with reported methods for the monitoring of PAHs, the present method exhibits some merits such as high sensitivity, automation of enrichment and determination procedure, low consumptions of sample and organic solvent. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Pang, Jinling AU - Pang J AD - State Key Laboratory of Marine Environmental Science, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem, College of the Environment and Ecology, Xiamen University, China. FAU - Yuan, Dongxing AU - Yuan D AD - State Key Laboratory of Marine Environmental Science, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem, College of the Environment and Ecology, Xiamen University, China. FAU - Huang, Xiaojia AU - Huang X AD - State Key Laboratory of Marine Environmental Science, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem, College of the Environment and Ecology, Xiamen University, China. Electronic address: hxj@xmu.edu.cn. LA - eng PT - Journal Article DEP - 20180727 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Polycyclic Aromatic Hydrocarbons) RN - 0 (Solvents) RN - 0 (Water Pollutants, Chemical) RN - 059QF0KO0R (Water) SB - IM MH - Animals MH - Chemistry Techniques, Analytical/*methods MH - *Chromatography, High Pressure Liquid MH - Fluorescence MH - Limit of Detection MH - Milk/*chemistry MH - Polycyclic Aromatic Hydrocarbons/*analysis MH - *Solid Phase Microextraction MH - Solvents/chemistry MH - Water/*chemistry MH - Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Adsorbent OT - Enrichment OT - In-tube solid phase microextraction OT - Monolith OT - Polycyclic aromatic hydrocarbons (PAHs) EDAT- 2018/09/05 06:00 MHDA- 2018/10/12 06:00 CRDT- 2018/09/05 06:00 PHST- 2018/06/03 00:00 [received] PHST- 2018/07/24 00:00 [revised] PHST- 2018/07/27 00:00 [accepted] PHST- 2018/09/05 06:00 [pubmed] PHST- 2018/10/12 06:00 [medline] PHST- 2018/09/05 06:00 [entrez] AID - S0021-9673(18)30960-9 [pii] AID - 10.1016/j.chroma.2018.07.077 [doi] PST - ppublish SO - J Chromatogr A. 2018 Oct 12;1571:29-37. doi: 10.1016/j.chroma.2018.07.077. Epub 2018 Jul 27.