Ultrasensitive Detection of Polycyclic Aromatic Hydrocarbons (PAHs) in Water Using Three-Dimensional SERS Substrate Based on Porous Material and pH 13 Gold Nanoparticles

2019 ◽  
Vol 18 (6) ◽  
pp. 1523-1531 ◽  
Author(s):  
Xiaofeng Shi ◽  
Xia Yan ◽  
Xinmin Zhang ◽  
Lizhen Ma ◽  
Xu Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Porous Material ◽  
Aromatic Hydrocarbons ◽  
Three Dimensional ◽  
Ultrasensitive Detection ◽  
Sers Substrate ◽  
Polycyclic Aromatic

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).

scholarly journals The General (α,3)-Path Connectivity Indices of Polycyclic Aromatic Hydrocarbons

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Haiying Wang ◽  
Chuantao Li
Keyword(s):  
Applied Sciences ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Molecular Graph ◽  
Three Dimensional ◽  
3D Qsar ◽  
Medical Sciences ◽  
Connectivity Indices ◽  
Polycyclic Aromatic ◽  
Extremal Values

The general (α,t)-path connectivity index of a molecular graph originates from many practical problems such as three-dimensional quantitative structure-activity (3D QSAR) and molecular chirality. It is defined as Rtα(G)=∑Pt=vi1vi2⋯vit+1⊆G[d(vi1)d(vi2)⋯d(vit+1)]α, where the summation is taken over all possible paths of length t of G and we do not distinguish between the paths vi1vi2⋯vit+1 and vit+1⋯vi2vi1. In this paper, we focus on the structures of Polycyclic Aromatic Hydrocarbons (PAHn), which play a role in organic materials and medical sciences. We try to compute the exact general (α,3)-path connectivity indices of this family of hydrocarbon structures. Furthermore, we exactly derive the monotonicity and the extremal values of R3α(PAHn) for any real number α. These valuable results could produce strong guiding significance to these applied sciences.

Three-Dimensional Flamelet Simulation of Polycyclic Aromatic Hydrocarbons Formation in DI-Diesel Engines

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Beijing Zhong ◽  
Shuai Dang ◽  
Jun Xi
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Numerical Simulations ◽  
Aromatic Hydrocarbons ◽  
Direct Injection ◽  
Combustion Process ◽  
Three Dimensional ◽  
Kinetic Mechanism ◽  
Flamelet Model ◽  
Polycyclic Aromatic ◽  
Reduced Kinetic Mechanism

In this study, numerical simulations for an n-heptane fueled Chaochai 6102bzl direct injection diesel engine are performed in order to predict the chemical details of the combustion process and resulting polycyclic aromatic hydrocarbons (such as benzene, naphthalene, phenanthrene and pyrene) formation. The diesel geometry and reduced kinetic mechanism of n-heptane oxidation, which includes only 86 reactions and 57 species, have been developed and incorporated into the computational fluid dynamics code, FLUENT. The diesel unsteady laminar flamelet model, turbulence model and spray model have been employed in the numerical simulations. The numerical simulation results showed that the polycyclic aromatic hydrocarbons were firstly increased with the increase of diesel crank angel and then decreased, which was mostly located at the bottom of diesel combustion chamber wall.

Analysis of polycyclic aromatic hydrocarbons using porous material MCM-41 as a sorbent

2013 ◽  
Vol 5 (23) ◽  
pp. 6874 ◽  
Author(s):  
Chang-Feng Ou-Yang ◽  
Jin-Yu Liu ◽  
Hsien-Ming Kao ◽  
Jei-Hung Wang ◽  
Shi-Ping Liu ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Porous Material ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic ◽  
Mcm 41

The headspace solid-phase microextraction of polycyclic aromatic hydrocarbons in environmental water samples using silica fiber modified by self assembled gold nanoparticles

2015 ◽  
Vol 7 (19) ◽  
pp. 8086-8093 ◽  
Author(s):  
Fahimeh Zare ◽  
Mehrorang Ghaedi ◽  
Ali Daneshfar
Keyword(s):  
Gold Nanoparticles ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Water Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Headspace Solid Phase Microextraction ◽  
Polycyclic Aromatic

The headspace solid phase microextraction method with modified silica fibers prepared based on self assembled gold nanoparticles and the sol–gel method is described for the determination of trace amounts of polycyclic aromatic hydrocarbons in environmental water samples..

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