PMID- 31317342
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20191125
LR  - 20210209
IS  - 1436-5073 (Electronic)
IS  - 0026-3672 (Linking)
VI  - 186
IP  - 8
DP  - 2019 Jul 17
TI  - Tailoring the selectivity of titania nanowire arrays grown on titanium fibers by 
      self-assembled modification of trichlorophenylsilane for solid-phase 
      microextraction of polycyclic aromatic hydrocarbons.
PG  - 536
LID - 10.1007/s00604-019-3553-z [doi]
AB  - The authors describe TiO(2) nanowires (TiO(2)NWs) for solid-phase microextraction 
      of polycyclic aromatic hydrocarbons (PAHs). Well-oriented TiO(2)NWs were in-situ 
      grown on a titanium wire by a hydrothermal process. The TiO(2)NWs arrays are 
      radially aligned on the curved titanium fiber substrate. They possess a large 
      surface area and are readily accessible for subsequent self-assembly of 
      trichlorophenylsilane via formation of Ti-O-Si bonds. The TiO(2)NWs coated fibers 
      show good extraction selectivity for PAHs as shown for phenathrene, fluoranthene, 
      pyrene and benzo[a]pyrene. Following desoption by mobile phases for HPLC 
      analysis, the PAHs were quantified by HPLC with UV detection. The improved 
      extraction capabilities and good selectivity are explained by synergistic 
      hydrophobic and pi stacking interactions between the phenyl moieties and the PAHs. 
      Key parameters that affect the extraction performance of the fibers were 
      optimized. The method has a linear response in the 0.1 to 200 mug.L(-1) PAH 
      concentration range. Limits of detection (at S/N = 3) range from 20 to 
      50 ng.L(-1). Relative standard deviations (RSDs) for the single fiber 
      repeatability are less than 7.3% (n = 5) and RSDs for the fiber-to-fiber 
      reproducibility are below 8.1% (n = 5). The method was successfully applied to 
      the selective preconcentration and determination of trace PAHs in spiked water 
      samples. Graphical abstract Schematic presentation of fabrication and 
      characterization of the Ti@TiO(2)NWs@Phenyl fiber. PAHs: polycyclic aromatic 
      hydrocarbons; UVFs: ultraviolet filters; PAEs: phthalate acid esters; CPs: 
      chlorophenols.
FAU - Zhang, Rong
AU  - Zhang R
AD  - College of Chemistry and Chemical Engineering, Northwest Normal University, 
      Lanzhou, 730070, China.
FAU - Wang, Zhuo
AU  - Wang Z
AD  - College of Chemistry and Chemical Engineering, Northwest Normal University, 
      Lanzhou, 730070, China.
FAU - Wang, Ziyi
AU  - Wang Z
AD  - College of Chemistry and Chemical Engineering, Northwest Normal University, 
      Lanzhou, 730070, China.
FAU - Wang, Xuemei
AU  - Wang X
AD  - College of Chemistry and Chemical Engineering, Northwest Normal University, 
      Lanzhou, 730070, China.
AD  - Key Lab of Bioelectrochemistry & Environmental Analysis of Gansu, Lanzhou, 
      730070, China.
FAU - Du, Xinzhen
AU  - Du X
AD  - College of Chemistry and Chemical Engineering, Northwest Normal University, 
      Lanzhou, 730070, China. duxz@nwnu.edu.cn.
AD  - Key Lab of Bioelectrochemistry & Environmental Analysis of Gansu, Lanzhou, 
      730070, China. duxz@nwnu.edu.cn.
LA  - eng
GR  - 21765020/National Natural Science Foundation of China/International
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20190717
PL  - Austria
TA  - Mikrochim Acta
JT  - Mikrochimica acta
JID - 7808782
SB  - IM
OTO - NOTNLM
OT  - Aromatic compounds
OT  - High-performance liquid chromatography
OT  - Hydrothermal growth
OT  - Inorganic-organic hybrid coating
OT  - Metal fiber
OT  - Nano-sized TiO2 arrays
OT  - Sample pretreatment
OT  - Silylation
OT  - Surface modification
EDAT- 2019/07/19 06:00
MHDA- 2019/07/19 06:01
CRDT- 2019/07/19 06:00
PHST- 2019/02/12 00:00 [received]
PHST- 2019/05/24 00:00 [accepted]
PHST- 2019/07/19 06:00 [entrez]
PHST- 2019/07/19 06:00 [pubmed]
PHST- 2019/07/19 06:01 [medline]
AID - 10.1007/s00604-019-3553-z [pii]
AID - 10.1007/s00604-019-3553-z [doi]
PST - epublish
SO  - Mikrochim Acta. 2019 Jul 17;186(8):536. doi: 10.1007/s00604-019-3553-z.