• 文献标题:   Assessment of graphene aerogel matrix solid-phase dispersion as sample preparation for the determination of chlorophenols in soil
  • 文献类型:   Article
  • 作  者:   WANG XM, DU TT, WANG J, KOU HX, DU XZ, LU XQ
  • 作者关键词:  
  • 出版物名称:   NEW JOURNAL OF CHEMISTRY
  • ISSN:   1144-0546 EI 1369-9261
  • 通讯作者地址:   Northwest Normal Univ
  • 被引频次:   6
  • DOI:   10.1039/c8nj00942b
  • 出版年:   2018

▎ 摘  要

Herein, three-dimensional (3D) graphene aerogels (GAs) were synthesized successfully by a simple hydrothermal reduction method and introduced as dispersing materials of matrix solid-phase dispersion (MSPD) for the determination of six chlorophenols (CPs) in soil samples via high performance liquid chromatography (HPLC). Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy (Raman), transmission electron microscopy (TEM), scanning electron microscopy (SEM), powder X-ray diffraction (XRD), and N-2 adsorption-desorption transmission were applied to characterize the synthesized GAs. The GA-SPE-HPLC-UV method shows low limits of detection (0.02-0.10 mu g L-1), wide linear ranges (50-1000 mu g L-1)(,) and acceptable reproducibility (relative standard deviation, RSD < 6.8% for intra-day, RSD < 8.6% for inter-day). Moreover, the method was further applied for the analysis of six CPs in real samples with good recoveries (86.1-111.1%) and satisfactory precision (RSD < 9.8%). The GAs are more effective in CP adsorption than commercial C18 (octadecylsilane) and SWCNTs (single-walled carbon nanotubes). It is confirmed that the proposed method has high sensitivity, outstanding selectivity, and good reproducibility towards the determination of trace CPs in the soil.