PMID- 28843602 OWN - NLM STAT- MEDLINE DCOM- 20171207 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1517 DP - 2017 Sep 29 TI - An organically modified silica aerogel for online in-tube solid-phase microextraction. PG - 203-208 LID - S0021-9673(17)31096-8 [pii] LID - 10.1016/j.chroma.2017.07.075 [doi] AB - Aerogels have received considerable attentions because of its porous, high specific surface, unique properties and environmental friendliness. In this work, an organically modified silica aerogel was functionalized on the basalt fibers (BFs) and filled into a poly(ether ether ketone) (PEEK) tube, which was coupled with high performance liquid chromatography (HPLC) for in-tube solid-phase microextraction (IT-SPME). The aerogel was characterized by scanning electron microscopy (SEM) and fourier transform infrared spectrometry (FT-IR). The extraction efficiency of the tube was systematically investigated and shown enrichment factors from 2346 to 3132. An automated, sensitive and selective method was developed for the determination of five estrogens. The linear range was from 0.03 to 100mugL(-1) with correlation coefficients (r) higher than 0.9989, and low detection limits (LODs) were 0.01-0.05mugL(-1). The relative standard deviations (RSDs) for intra-day and inter-day were less than 4.5% and 6.7% (n=6), respectively. Finally, the analysis method was successfully applied to detect estrogens in sewage and emollient water samples. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Bu, Yanan AU - Bu Y AD - Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. FAU - Feng, Juanjuan AU - Feng J AD - Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. FAU - Tian, Yu AU - Tian Y AD - Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. FAU - Wang, Xiuqin AU - Wang X AD - Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. FAU - Sun, Min AU - Sun M AD - Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. Electronic address: chm_sunm@ujn.edu.cn. FAU - Luo, Chuannan AU - Luo C AD - Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China. Electronic address: chm_luocn@ujn.edu.cn. LA - eng PT - Journal Article DEP - 20170724 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Estrogens) RN - 0 (Gels) RN - 0 (Ketones) RN - 0 (Sewage) RN - 0 (Silicates) RN - 0 (Water Pollutants, Chemical) RN - 0 (basalt) RN - 7631-86-9 (Silicon Dioxide) SB - IM MH - Chromatography, High Pressure Liquid MH - Environmental Monitoring/*methods MH - Estrogens/analysis MH - Fresh Water/chemistry MH - Gels/chemistry MH - Ketones/chemistry MH - Limit of Detection MH - Microscopy, Electron, Scanning MH - Sewage/chemistry MH - Silicates/chemistry MH - Silicon Dioxide/*chemistry MH - Solid Phase Microextraction/instrumentation/*methods MH - Spectroscopy, Fourier Transform Infrared MH - Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Basalt fibers OT - Estrogens OT - High performance liquid chromatography OT - In-tube solid-phase microextraction OT - Online analysis OT - Silica aerogel EDAT- 2017/08/28 06:00 MHDA- 2017/12/08 06:00 CRDT- 2017/08/28 06:00 PHST- 2017/05/25 00:00 [received] PHST- 2017/07/18 00:00 [revised] PHST- 2017/07/23 00:00 [accepted] PHST- 2017/08/28 06:00 [pubmed] PHST- 2017/12/08 06:00 [medline] PHST- 2017/08/28 06:00 [entrez] AID - S0021-9673(17)31096-8 [pii] AID - 10.1016/j.chroma.2017.07.075 [doi] PST - ppublish SO - J Chromatogr A. 2017 Sep 29;1517:203-208. doi: 10.1016/j.chroma.2017.07.075. Epub 2017 Jul 24.