Determination of trace heavy metal elements in aqueous solution using surface-enhanced laser-induced breakdown spectroscopy

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

“…Yang et al 24 used surface-enhanced LIBS to simultaneously determine La, Ce, Pr, and Nd elements in the aqueous solutions, finding that when the Zn metal is used as the test solution carrier, the LoDs of La, Ce, Pr, and Nd elements can reach 0.85, 4.07, 2.97 and 10.98 μg mL −1 , respectively. Ma et al 25 used surface-enhanced LIBS to determine Cr and Pb elements, finding that under the optimal Zn metal substrate conditions, the LoDs of Cr and Pb elements were 0.0011 and 0.004 mg L −1 , respectively. Liu et al 26 used resonant surface-enhanced LIBS to determine the Pb element in aqueous solutions, finding that when Ti metal is used as the solution carrier to be tested, the LoD of the Pb element is 2.1 ng mL −1 .…”

Graphene thin film microextraction and nanoparticle enhancement for fast LIBS metal trace analysis in liquids

“…The authors found that the rough microstructure on the substrate surface trapped the solution in the laser-pretreated area and enabled a homogeneous distribution of the solution, enabling LODs of tens of μg/L for Cd and Cr. Ma and co-workers investigated SENLIBS for the detection of heavy metals in aqueous solutions using Zn, Mg alloy, Ni and Si substrates [9]. After drying droplets of stock solutions onto the substrates, the authors obtained LODs of less than 0.004 mg/L of Pb and Cr.…”

Sensitive Quantitative Analysis of Strontium in Microdroplet by Surfaceenhanced Laser-induced Breakdown Spectroscopy Using Porous Silicon 2021 The Japan Society for Analytical Chemistry

“…In the decommissioning works, monitoring of contaminated water is also required to understand the situation of the damaged nuclear reactors. 7 In this context, surface-enhanced LIBS (SELIBS) [8][9][10] is a promising method for liquid analysis. In SELIBS, we drop a sample solution on a solid substrate and subsequently analyze the dry residue by LIBS.…”