Validity of Nanoparticle Enhanced Molecular Laser-induced Breakdown Spectroscopy

2021 ◽  
Author(s):  
Zhiyang Tang ◽  
Ke Liu ◽  
Zhongqi Hao ◽  
Kun Liu ◽  
Wen Zhang ◽  
...  
Keyword(s):  
Spectral Range ◽  
Visible Spectral Range ◽  
Laser Induced Breakdown Spectroscopy ◽  
Molecular Laser ◽  
Isotope Shifts ◽  
Breakdown Spectroscopy ◽  
Actual Application ◽  
Laser Induced Breakdown

Molecular Laser-induced breakdown spectroscopy (MLIBS) has received widespread attention due to its unique features, like larger isotope shifts and visible spectral range. However, the actual application has not been developed...

Laser-Induced Breakdown Spectroscopy for the On-Line Multielement Analysis of Highly Radioactive Glass Melt. Part I: Characterization and Evaluation of the Method

2002 ◽  
Vol 56 (4) ◽  
pp. 437-448 ◽  
Author(s):  
Jong-Il Yun ◽  
Reinhardt Klenze ◽  
Jae-Il Kim
Keyword(s):  
Spectral Range ◽  
Liquid Waste ◽  
Plasma Temperature ◽  
Multielement Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
High Level Liquid Waste ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
On Line ◽  
Echelle Spectrometer

Laser-induced breakdown spectroscopy (LIBS) is presented for the on-line multielement analysis of molten radioactive glass at a simulated vitrification process of high level liquid waste (HLLW). A plasma plume is produced by focusing the third harmonic of a Nd: YAG laser (λ = 355 nm) onto the glass melt surface at 1200 °C, and the plasma emission is guided via optical fiber and is characterized by an echelle spectrometer for the spectral range from 200 to 780 nm with a resolution of ±0.01 nm. Compared to a Czerny–Turner spectrometer, the echelle spectrometer appears distinctively superior for its broad operational spectral range and high resolution. The laser-induced plasma is found as optically thin and locally in thermodynamic equilibrium (LTE) as characterized by measuring the electron density and plasma temperature. The matrix temperature effect on the spectral emission is observed as significant, increasing the emission line intensities with increasing temperature, but differently from element to element. The applicability of LIBS is demonstrated on a laboratory scale with an inactive simulated HLLW glass melt for various analytical characteristics concerned.

Molecular laser-induced breakdown spectroscopy

2020 ◽  
pp. 167-209
Author(s):  
Christian G. Parigger ◽  
David M. Surmick ◽  
Christopher M. Helstern ◽  
Ghaneshwar Gautam ◽  
Alexander A. Bol’shakov ◽  
...  
Keyword(s):  
Laser Induced Breakdown Spectroscopy ◽  
Molecular Laser ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Determination of boron in aqueous solution using a method combining laser ablation molecular isotopic spectrometry with molecular laser-induced fluorescence and isotopic dilution

2021 ◽  
Author(s):  
Kun Liu ◽  
Ran Zhou ◽  
Wen Zhang ◽  
Zhiyang Tang ◽  
Qingzhou Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Quantitative Analysis ◽  
Laser Induced Fluorescence ◽  
Isotopic Dilution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Inhomogeneous Distribution ◽  
Molecular Laser ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy(LIBS) has been applied in quantitative and isotopic detection of boron. However, the inhomogeneous distribution and possible loss of substance affect the accuracy of quantitative analysis in aqueous...

Molecular laser-induced breakdown spectroscopy technique for the detection of nitrogen in waters

2022 ◽  
Author(s):  
Shixiang Ma ◽  
Lianbo Guo ◽  
Daming Dong
Keyword(s):  
Conventional Method ◽  
Potassium Persulfate ◽  
Laser Induced Breakdown Spectroscopy ◽  
Spectroscopy Technique ◽  
N Content ◽  
Molecular Laser ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Kjeldahl Method

Nitrogen (N) content is a significant indicator for use in evaluating eutrophication. However, the conventional method, such as alkaline potassium persulfate digestion ultraviolet (UV) spectrophotometric or Kjeldahl method, always require...

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