scholarly journals A Versatile SERS Sensor for Multiple Determinations of Polycyclic Aromatic Hydrocarbons and Its Application Potential in Analysis of Fried Foods

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Shi Wang ◽  
Jie Cheng ◽  
Caiqin Han ◽  
Jianchun Xie
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Sample Pretreatment ◽  
Detection Sensitivity ◽  
Sers Detection ◽  
Layer Effect ◽  
Polycyclic Aromatic ◽  
Fried Foods ◽  
Application Potential ◽  
Binary Linear Regression

Polycyclic aromatic hydrocarbons (PAHs), due to their high hydrophobicity, have low affinity for metallic SERS-active surfaces, which leads to their low SERS detection sensitivity. Various functional groups have been used to improve the affinity of metallic substrates towards the target PAHs. However, a large portion of the signals generated from the “first-layer effect” of the functionalized substrates may complicate the spectrum, leading to a distortion in the assignment of the intrinsic SERS fingerprints of PAHs. In this study, a SERS sensor composed of Au nanoparticles (AuNPs) and reoxidized graphene oxide (rGO) was developed for the simultaneous determination of 16 EPA priority PAHs. The synthesis of the rGO/AuNP substrate can be realized without a complicated modification process. All the 16 PAHs could be identified based on their characteristic peaks in the presence of the composited substrate, with estimated LOD as low as 0.2–2 ng·mL−1. The binary linear regression was optimized as the fitting model for all PAHs except for benzo(k)fluoranthene, with the linear correlation coefficient ranging from 0.9889 to 0.9997. Based on the developed SERS substrates and sample pretreatment, the characteristic SERS peaks of four PAHs in Chinese traditional fried food (youtiao) were identified without any background interference. The whole detection process only takes approximately 15 minutes. The results demonstrate the potential of the multicomponent on-field detection of PAHs.

Sample pretreatment to differentiate between bioconcentration and atmospheric deposition of polycyclic aromatic hydrocarbons in mosses

Chemosphere ◽  
2015 ◽  
Vol 122 ◽  
pp. 295-300 ◽  
Author(s):  
Julen Bustamante ◽  
Olaia Liñero ◽  
Iker Arrizabalaga ◽  
Jose Antonio Carrero ◽  
Gorka Arana ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Atmospheric Deposition ◽  
Aromatic Hydrocarbons ◽  
Sample Pretreatment ◽  
Polycyclic Aromatic

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.

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.

Simultaneous preconcentration and ultrasensitive on-site SERS detection of polycyclic aromatic hydrocarbons in seawater using hexanethiol-modified silver decorated graphene nanomaterials

2016 ◽  
Vol 8 (42) ◽  
pp. 7587-7596 ◽  
Author(s):  
Shaojie Jia ◽  
Dan Li ◽  
Essy Kouadio Fodjo ◽  
Hu Xu ◽  
Wei Deng ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Sers Detection ◽  
Polycyclic Aromatic

A Ag/GN-SH based SPE-SERS technique can be used for on-site preconcentration and detection of six major PAHs in seawater.

Hydrophobic silver nanowire membrane for swabbing extraction and in situ SERS detection of polycyclic aromatic hydrocarbons on toys

2017 ◽  
Vol 9 (11) ◽  
pp. 1816-1824 ◽  
Author(s):  
Lanlan Xiao ◽  
Min Zhang ◽  
Zhen Liu ◽  
Weiwei Bian ◽  
Xiaoli Zhang ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Environmental Health ◽  
Aromatic Hydrocarbons ◽  
Silver Nanowire ◽  
Health Hazards ◽  
Solid Samples ◽  
Sers Detection ◽  
Polycyclic Aromatic

The migration of solid samples from the interior to the surface of materials has raised serious concerns due to the increasing environmental health hazards in recent years.

scholarly journals A Novel Protocol to Monitor Trace Levels of Selected Polycyclic Aromatic Hydrocarbons in Environmental Water Using Fabric Phase Sorptive Extraction Followed by High Performance Liquid Chromatography-Fluorescence Detection

2017 ◽  
Author(s):  
Shivender Singh Saini ◽  
Abuzar Kabir ◽  
Ashok Kumar Malik ◽  
Avasarala Lakshmi Jagannadha Rao ◽  
Kenneth Furton
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Water Samples ◽  
Environmental Water ◽  
Detection Sensitivity ◽  
Environmental Water Samples ◽  
Sorptive Extraction ◽  
Relative Standard ◽  
Wide Range ◽  
Polycyclic Aromatic

Fabric phase sorptive extraction (FPSE) combines the advanced material properties of sol–gel derived microextraction sorbents and the flexible and permeable fabric support to create a robust, simple and green sample preparation device. It simultaneously improves the extraction sensitivity, and the speed of the extraction by incorporating high volume of sponge-like porous sol–gel hybrid inorganic–organic sorbents into permeable fabric substrates that is capable of extracting target analytes directly from simple to complex aqueous sample matrices. For the first time, this technique was applied to the trace level determination of selected polycyclic aromatic hydrocarbons (PAHs) in environmental water samples using a non-polar sol–gel C18 coated FPSE media. Several extraction parameters were optimized to improve extraction efficiency and to achieve high detection sensitivity. Validation tests of spiked samples showed good linearity for four selected PAHs (R2 = 0.9983–0.9997) over a wide range of concentrations (0.010-10 ng/mL). Limits of detection (LODs) and quantification (LOQs) were measured at pg/mL levels, 0.1–1 pg/mL and 0.3–3 pg/mL, respectively. Inter- and intra-day precision tests showed variations of 1.1–4.1% for four selected PAHs. Average absolute recovery values were in the range of 88.1–90.5% surpassed the recovery prediction model, with relative standard deviations below 5%. The developed FPSE-HPLC-FLD protocol was finally applied to analyze 8 environmental water samples. Out of four selected PAHs, fluoranthene (Flu) and phenanthrene (Phen) were the most frequently detected in four samples, at concentration levels of 5.6–7.7 ng/mL and 4.1-11 ng/mL, respectively followed by anthracene (Anth) and pyrene (Pyr) in two samples. The newly developed FPSE-HPLC-FLD protocol is simple, green, fast and economical, with adequate sensitivity for trace levels of four selected PAHs and seems to be promising in routine monitoring of water quality and safety.

SERS detection of polycyclic aromatic hydrocarbons using a bare gold nanoparticles coupled film system

The Analyst ◽  
2016 ◽  
Vol 141 (14) ◽  
pp. 4359-4365 ◽  
Author(s):  
Hai-Xin Gu ◽  
Kai Hu ◽  
Da-Wei Li ◽  
Yi-Tao Long
Keyword(s):  
Gold Nanoparticles ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Sers Substrate ◽  
Film System ◽  
System P ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Polycyclic Aromatic ◽  
Bare Gold

A facile approach based on a bare gold nanoparticles (Au NPs) coupled film system as the surface-enhanced Raman scattering (SERS) substrate was developed for the effective detection of polycyclic aromatic hydrocarbons (PAHs).

Sign in / Sign up

Export Citation Format

Share Document