An improved self-assembly gold colloid film as surface-enhanced Raman substrate for detection of trace-level polycyclic aromatic hydrocarbons in aqueous solution

2012 ◽  
Vol 43 (10) ◽  
pp. 1354-1359 ◽  
Author(s):  
Xiaofeng Shi ◽  
Jun Ma ◽  
Ronger Zheng ◽  
Chunyan Wang ◽  
Heinz-Detlef Kronfeldt
Keyword(s):  
Aqueous Solution ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Self Assembly ◽  
Gold Colloid ◽  
Trace Level ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Polycyclic Aromatic

Portable Surface-Enhanced Raman Scattering Sensor for the Rapid Detection of Polycyclic Aromatic Hydrocarbons in Coastal Seawater

2019 ◽  
Vol 53 (2) ◽  
pp. 46-55
Author(s):  
Xiaofeng Shi ◽  
Dahai Zhang ◽  
Wenjie Jia ◽  
Xia Yan ◽  
Jie Yang ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Raman Scattering ◽  
Aromatic Hydrocarbons ◽  
Colloid Solution ◽  
Gold Colloid ◽  
Coastal Seawater ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Polycyclic Aromatic ◽  
Enhanced Raman Scattering

AbstractTo rapidly detect polycyclic aromatic hydrocarbons (PAHs) in coastal seawater, a portable surface-enhanced Raman scattering (SERS) sensor was designed and assembled. A large number of halide ions are present in seawater, and they easily combine with gold nanoparticles, which results in a significant SERS enhancement effect for PAHs. Therefore, a mixture of a gold colloid solution and NaCl solution that forms a large number of highly sensitive SERS-active clusters was used in this study. The extinction intensity of the gold colloid solution at 785 nm—that is, the SERS excitation wavelength—was greatly increased by the addition of Cl−. The SERS sensor was applied in five different coastal environments, and six or seven types of PAHs were detected without further sample processing. The seawater samples were also analyzed using a gas chromatography-flame ionization detector (GC-FID) for comparison and confirmation of the results. Ten to 13 types of PAHs were detected by GC-FID after dehydration, purification, and concentration under nitrogen, and naphthalene was not detected because of its volatility. The SERS sensor was proven to be a suitable alarm sensor for the in-situ detection of PAHs in coastal seawater and is proposed for use as a real-time qualitative and quantitative PAH monitoring sensor in the near future based on its promising improvement in sensitivity.

CTAB micelles assisted rGO–AgNP hybrids for SERS detection of polycyclic aromatic hydrocarbons

2015 ◽  
Vol 17 (33) ◽  
pp. 21158-21163 ◽  
Author(s):  
Meng Jiang ◽  
Zhijiang Qian ◽  
Xufeng Zhou ◽  
Xing Xin ◽  
Jinghua Wu ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Raman Scattering ◽  
Aromatic Hydrocarbons ◽  
Surface Enhanced Raman Scattering ◽  
Ag Nanoparticle ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Polycyclic Aromatic ◽  
Enhanced Raman Scattering

A facile and convenient strategy to detect polycyclic aromatic hydrocarbons is presented, using graphene–Ag nanoparticle hybrids as a surface-enhanced Raman scattering substrate.

Detection of polycyclic aromatic hydrocarbons from cooking oil using ultra-thin layer chromatography and surface enhanced Raman spectroscopy

2015 ◽  
Vol 3 (9) ◽  
pp. 1898-1906 ◽  
Author(s):  
Jing Chen ◽  
Yao-wen Huang ◽  
Yiping Zhao
Keyword(s):  
Raman Spectroscopy ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Thin Layer ◽  
Aromatic Hydrocarbons ◽  
Surface Enhanced Raman Spectroscopy ◽  
Cooking Oil ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Polycyclic Aromatic ◽  
Layer Chromatography

The combinatory use of on-chip ultra-thin layer chromatography (UTLC) and surface enhanced Raman spectroscopy (SERS) has been demonstrated to detect mixtures of hazardous food contaminants, polycyclic aromatic hydrocarbons (PAHs), from cooking oil samples.

Silver nanoparticle aggregates on metal fibers for solid phase microextraction–surface enhanced Raman spectroscopy detection of polycyclic aromatic hydrocarbons

The Analyst ◽  
2015 ◽  
Vol 140 (13) ◽  
pp. 4668-4675 ◽  
Author(s):  
Cuicui Liu ◽  
Xiaoli Zhang ◽  
Limei Li ◽  
Jingcheng Cui ◽  
Yu-e Shi ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Nanoparticle Aggregates ◽  
Sers Detection ◽  
Polycyclic Aromatic

Silver–copper fibers loaded with silver nanoparticles are used for SPME–SERS detection of polycyclic aromatic hydrocarbons, which can be further confirmed by GC-MS.

Sign in / Sign up

Export Citation Format

Share Document