Speciation analysis on europium(III) using laser-induced breakdown spectroscopy

2000 ◽  
Vol 88 (9-11) ◽  
Author(s):  
H. Hotokezaka ◽  
S. Tanaka ◽  
A. Suzuki ◽  
S. Nagasaki
Keyword(s):  
Speciation Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
The Eu

The generation of Eu(III) precipitation and the Eu sorption on TiO

Selective Determination of Europium(III) Oxide and Hydroxide Colloids in Aqueous Solution by Laser-Induced Breakdown Spectroscopy

2001 ◽  
Vol 55 (3) ◽  
pp. 273-278 ◽  
Author(s):  
Jong-Il Yun ◽  
Tobias Bundschuh ◽  
Volker Neck ◽  
Jae-Il Kim
Keyword(s):  
Light Emission ◽  
Aqueous Suspension ◽  
Atomic Emission ◽  
Solubility Limit ◽  
Laser Induced Breakdown Spectroscopy ◽  
Selective Determination ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
The Eu

Laser-induced breakdown spectroscopy (LIBS) was applied to selectively analyze the aqueous suspension of Eu2O3(s) particles in the presence of the Eu3+ aquo ion. A plasma was generated by focusing a pulsed Nd:YAG laser beam (λ = 532 nm) into the sample. The light emission from the plasma was detected by a spectrograph equipped with a gated intensified charge-coupled device (ICCD) in the wavelength range of 275–525 nm. The atomic emission intensity of the Eu2O3(s) suspension was about two orders of magnitude higher than that of the Eu3+ aquo ion. The detection limits for Eu3+(aq) and Eu2O3(s) were found to be 3.3 × 10−5 mol/L and 2.0 × 10−7 mol/L, respectively. Such a difference allows the selective determination of colloidal europium particles. This capability of LIBS was used to study the formation of Eu(OH)3(s) colloids in the aqueous Eu3 solution by varying pH until the solubility limit was exceeded. The appraisal of the threshold pH for the solubility limit led to the determination of the solubility product of colloidal Eu(OH)3(s), which was then calculated to be log K0sp= −25.5 ± 0.4.

Properties of laser-induced breakdown spectroscopy of element speciation analysis of carbon

2010 ◽  
Vol 22 (2) ◽  
pp. 270-274 ◽  
Author(s):  
董美蓉 Dong Meirong ◽  
陆继东 Lu Jidong ◽  
陈凯 Chen Kai ◽  
李娉 Li Ping ◽  
姚顺春 Yao Shunchun ◽  
...  
Keyword(s):  
Speciation Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Element Speciation

scholarly journals Increasing Resource Efficiency of Bauxites Using LIBS

2021 ◽  
Vol 5 (1) ◽  
pp. 81
Author(s):  
Jeannet A. Meima ◽  
Beate Orberger ◽  
Carlos García Piña ◽  
Antoine Prudhomme ◽  
Carsten Dittrich
Keyword(s):  
Emission Lines ◽  
Critical Parameters ◽  
Laser Induced Breakdown Spectroscopy ◽  
Bauxite Mining ◽  
Southern France ◽  
Breakdown Spectroscopy ◽  
Aluminium Production ◽  
Digital Transition ◽  
Laser Induced Breakdown ◽  
The Eu

The EU aluminium production from, e.g., bauxite is one of the backbones to support Europe’s green and digital transition. In support of sustainable bauxite exploration and mining, Laser Induced Breakdown Spectroscopy (LIBS) was used on the major facies of the karst bauxite deposits of SODICAPEI (Southern France). Our results showed that LIBS is a very promising technology to define the bottom and top layer of bauxite ores and to access critical parameters crucial for bauxite mining and processing. First LIBS tests were made on scandium standards to find appropriate Sc emission lines for future applications.

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Threshold ◽  
Powerful Technique ◽  
Breakdown Spectroscopy ◽  
Continuous Radiation ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

Characterization of Amethysts from Sukamara, Central Kalimantan, Using Laser-Induced Breakdown Spectroscopy (LIBS)

2020 ◽  
Vol 1 (2) ◽  
pp. 5-8
Author(s):  
Komang Gde Suastika, Heri Suyanto, Gunarjo, Sadiana, Darmaji
Keyword(s):  
Emission Intensity ◽  
Laser Energy ◽  
Emission Spectra ◽  
Atomic Emission ◽  
Laser Induced Breakdown Spectroscopy ◽  
Chemical Formula ◽  
Central Kalimantan ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Abstract - Laser-Induced Breakdown Spectroscopy (LIBS) is one method of atomic emission spectroscopy using laser ablation as an energy source. This method is used to characterize the type of amethysts that originally come from Sukamara, Central Kalimantan. The result of amethyst characterization can be used as a reference for claiming the natural wealth of the amethyst. The amethyst samples are directly taken from the amethyst mining field in the District Gem Amethyst and consist of four color variations: white, black, yellow, and purple. These samples were analyzed by LIBS, using laser energy of 120 mJ, delay time detection of 2 μs and accumulation of 3, with and without cleaning. The purpose of this study is to determine emission spectra characteristics, contained elements, and physical characteristics of each amethyst sample. The spectra show that the amethyst samples contain some elements such as Al, Ca, K, Fe, Gd, Ba, Si, Be, H, O, N, Cl and Pu with various emission intensities. The value of emission intensity corresponds to concentration of element in the sample. Hence, the characteristics of the amethysts are based on their concentration value. The element with the highest concentration in all samples is Si, which is related to the chemical formula of SiO2. The element with the lowest concentration in all samples is Ca that is found in black and yellow amethysts. The emission intensity of Fe element can distinguish between white, purple, and yellow amethyst. If Fe emission intensity is very low, it indicates yellow sample. Thus, we may conclude that LIBS is a method that can be used to characterize the amethyst samples.Key words: amethyst, impurity, laser-induced, breakdown spectroscopy, characteristic, gemstones

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