Highly sensitive analysis of trace elements in aqueous solutions using surface-enhanced and discharge-assisted laser-induced breakdown spectroscopy

Author(s):  
Qiuyun Wang ◽  
Ting Ge ◽  
Yitong Liu ◽  
Luyun Jiang ◽  
Anmin Chen ◽  
...  

By combining surface-enhanced and discharge-assisted laser-induced breakdown spectroscopy (LIBS), the study successfully realized the quantitative analysis of trace heavy metal Cr, Cu, and Pb in aqueous solutions. We used an...

Author(s):  
Qiuyun Wang ◽  
Anmin Chen ◽  
Yutong Chen ◽  
Yuanfei Jiang ◽  
Suyu Li ◽  
...  

This study used laser-induced breakdown spectroscopy (LIBS) combined with spark discharge (SD) and electro-deposition method to analyze trace heavy metal Pb in an aqueous solution. First, the electro-deposition method was...


2021 ◽  
Author(s):  
Elizabeth Corriveau ◽  
Ashley Mossell ◽  
Holly VerMeulen ◽  
Samuel Beal ◽  
Jay Clausen

Laser-induced breakdown spectroscopy (LIBS) is a rapid, low-cost analytical method with potential applications for quantitative analysis of soils for heavy metal contaminants found in military ranges. The Department of Defense (DoD), Army, and Department of Homeland Security (DHS) have mission requirements to acquire the ability to detect and identify chemicals of concern in the field. The quantitative potential of a commercial off-the-shelf (COTS) hand-held LIBS device and a classic laboratory bench-top LIBS system was examined by measuring heavy metals (antimony, tungsten, iron, lead, and zinc) in soils from six military ranges. To ensure the accuracy of the quantified results, we also examined the soil samples using other hand-held and bench-top analytical methods, to include Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and X-Ray Fluorescence (XRF). The effects of soil heterogeneity on quantitative analysis were reviewed with hand-held and bench-top systems and compared multivariate and univariate calibration algorithms for heavy metal quantification. In addition, the influence of cold temperatures on signal intensity and resulting concentration were examined to further assess the viability of this technology in cold environments. Overall, the results indicate that additional work should be performed to enhance the ability of LIBS as a reliable quantitative analytical tool.


2011 ◽  
Vol 38 (8) ◽  
pp. 0815003 ◽  
Author(s):  
修俊山 Xiu Junshan ◽  
侯华明 Hou Huaming ◽  
钟石磊 Zhong Shilei ◽  
王振南 Wang Zhennan ◽  
卢渊 Lu Yuan ◽  
...  

2018 ◽  
Vol 72 (8) ◽  
pp. 1183-1188 ◽  
Author(s):  
Hongbo Fu ◽  
Huadong Wang ◽  
Junwei Jia ◽  
Zhibo Ni ◽  
Fengzhong Dong

Due to the influence of self-absorption of major elements, scarce observable spectral lines of trace elements, and relative efficiency correction of experimental system, accurate quantitative analysis with calibration-free laser-induced breakdown spectroscopy (CF-LIBS) is in fact not easy. In order to overcome these difficulties, standard reference line (SRL) combined with one-point calibration (OPC) is used to analyze six elements in three stainless-steel and five heat-resistant steel samples. The Stark broadening and Saha-Boltzmann plot of Fe are used to calculate the electron density and the plasma temperature, respectively. In the present work, we tested the original SRL method, the SRL with the OPC method, and intercept with the OPC method. The final calculation results show that the latter two methods can effectively improve the overall accuracy of quantitative analysis and the detection limits of trace elements.


2015 ◽  
Vol 30 (2) ◽  
pp. 417-425 ◽  
Author(s):  
Erwan Negre ◽  
Vincent Motto-Ros ◽  
Frederic Pelascini ◽  
Sandrine Lauper ◽  
Danielle Denis ◽  
...  

The analytical figures of merit of laser-induced breakdown spectroscopy (LIBS) for elemental analysis of glass have been evaluated using a laboratory prototype of the LIBS instrument for the quantification of 4 elements, Ti, Cr, Ca and Ba.


2021 ◽  
Author(s):  
Ashwin P. Rao ◽  
Phillip R. Jenkins ◽  
Dung M Vu ◽  
John D. Auxier ◽  
Anil K Patnaik ◽  
...  

We present the first reported quantification of trace elements in plutonium via a portable laser-induced breakdown spectroscopy (LIBS) device and demonstrate the use of chemometric analysis to enhance the handheld...


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