Quantitative analysis of mercury in liquid samples using laser-induced breakdown spectroscopy combined with shear thickening fluid

Abstract

Laser-induced breakdown spectroscopy (LIBS) has been widely used to analyze heavy metals in the environment. When LIBS is used to analyze mercury (Hg) in liquids, the water splashing, surface ripples,...

High-sensitivity analysis of mercury in medicinal herbs using nanoparticle-enhanced laser-induced breakdown spectroscopy combined with argon purging

“…17 LIBS requires almost no sample preparation and is suitable for in situ, on-line, and multi-element analysis. 18 In the past few decades, LIBS was developed rapidly and widely used in space exploration, 19 steel industry, 20,21 environmental protection, [22][23][24] food safety, 25 and medical herbs. [26][27][28] Wang et al quantitatively analyzed Pb and Cu in Ligusticum wallichii by LIBS, and the limits of detection for Pb and Cu were 15.7 and 6.3 mg kg −1 , respectively.…”

Agarose Film-Based Liquid–Solid Conversion for Heavy Metal Detection of Water Samples by Laser-Induced Breakdown Spectroscopy

“…In order to solve these problems, liquid–solid conversion has been investigated to eliminate the drawbacks of LIBS water detection by transferring the target element from liquid to solid [ 22 ] or solidifying the sample [ 23 , 24 ]. The transfer of target elements from liquid to solid can completely eliminate the effects of moisture and can be divided into solid-phase extraction [ 25 ] and substrate liquid–solid conversion [ 26 ].…”