Synthesis of silver and gold nanoparticles by pulsed laser ablation for nanoparticle enhanced laser-induced breakdown spectroscopy

2019 ◽  
Vol 31 (2) ◽  
pp. 022014 ◽  
Author(s):  
H. Qayyum ◽  
R. Ali ◽  
Z. U. Rehman ◽  
S. Ullah ◽  
B. Shafique ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Induced Breakdown Spectroscopy ◽  
Silver And Gold Nanoparticles ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Silver and gold nanoparticles produced by pulsed laser ablation in liquid to investigate their interaction with Ubiquitin

2016 ◽  
Vol 374 ◽  
pp. 297-304 ◽  
Author(s):  
M. Dell’Aglio ◽  
V. Mangini ◽  
G. Valenza ◽  
O. De Pascale ◽  
A. De Stradis ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Ablation In Liquid ◽  
Silver And Gold Nanoparticles

Gold Nanoparticle-Enhanced Laser-Induced Breakdown Spectroscopy and Three-Dimensional Contour Imaging of an Aluminum Alloy

2020 ◽  
pp. 000370282097304
Author(s):  
Amal A. Khedr ◽  
Mahmoud A. Sliem ◽  
Mohamed Abdel-Harith
Keyword(s):  
Gold Nanoparticles ◽  
Aluminum Alloy ◽  
Three Dimensional ◽  
Plasma Temperature ◽  
Spectral Lines ◽  
Laser Induced Breakdown Spectroscopy ◽  
Al Alloy ◽  
Boltzmann Plot ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

In the present work, nanoparticle-enhanced laser-induced breakdown spectroscopy was used to analyze an aluminum alloy. Although LIBS has numerous advantages, it suffers from low sensitivity and low detection limits compared to other spectrochemical analytical methods. However, using gold nanoparticles helps to overcome such drawbacks and enhances the LIBS sensitivity in analyzing aluminum alloy in the current work. Aluminum was the major element in the analyzed samples (99.9%), while magnesium (Mg) was the minor element (0.1%). The spread of gold nanoparticles onto the Al alloy and using a laser with different pulse energies were exploited to enhance the Al alloy spectral lines. The results showed that Au NPs successfully improved the alloy spectral lines intensity by eight times, which could be useful for detecting many trace elements in higher matrix alloys. Under the assumption of local thermodynamic equilibrium, the Boltzmann plot was used to calculate the plasma temperature. Besides, the electron density was calculated using Mg and H lines at Mg(I) at 285.2 nm and Hα(I) at 656.2 nm, respectively. Three-dimensional contour mapping and color fill images contributed to understanding the behavior of the involved effects.

Pre-Ablation Laser Parameters Effect on the Spectral Enhancement of Double Pulsed Laser Induced Breakdown Spectroscopy

2013 ◽  
Vol 40 (8) ◽  
pp. 0815003
Author(s):  
高勋 Gao Xun ◽  
邵妍 Shao Yan ◽  
杜闯 Du Chuang ◽  
赵振明 Zhao Zhenming ◽  
郑权 Zheng Quan ◽  
...  
Keyword(s):  
Pulsed Laser ◽  
Laser Induced Breakdown Spectroscopy ◽  
Laser Parameters ◽  
Breakdown Spectroscopy ◽  
Ablation Laser ◽  
Spectral Enhancement ◽  
Laser Induced Breakdown

Analysis of the heavy metals in atmospheric particulate matter using dual-pulsed laser-induced breakdown spectroscopy

2019 ◽  
Vol 48 (10) ◽  
pp. 1005006
Author(s):  
李业秋 Li Yeqiu ◽  
孙成林 Sun Chenglin ◽  
李 倩 Li Qian ◽  
岱 钦 Dai Qin ◽  
乌日娜 Wu Rina ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Particulate Matter ◽  
Pulsed Laser ◽  
Atmospheric Particulate Matter ◽  
Laser Induced Breakdown Spectroscopy ◽  
Atmospheric Particulate ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Influence of sample temperature on the laser-induced breakdown spectroscopy of a molybdenum–tungsten alloy

2019 ◽  
Vol 34 (12) ◽  
pp. 2378-2384 ◽  
Author(s):  
Ran Hai ◽  
Zhonglin He ◽  
Ding Wu ◽  
Weina Tong ◽  
Harse Sattar ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Electron Density ◽  
Emission Intensity ◽  
Plasma Temperature ◽  
Sample Temperature ◽  
Tungsten Alloy ◽  
Laser Induced Breakdown Spectroscopy ◽  
Spectral Emission ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

During laser ablation, the spectral emission intensity, plasma temperature and electron density increased significantly with increasing sample temperature.

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