A tutorial review on methods of agricultural product sample pretreatment and target analysis by laser-induced breakdown spectroscopy

Abstract

The frequent occurrence of quality and safety incidents about agricultural products has intensified consumers' concerns. Since laser-induced breakdown spectroscopy (LIBS) is a promising, versatile atomic spectrum analysis technique for the...

The influences of ambient humidity on laser-induced breakdown spectroscopy

“…1,2 It has the advantages of simple sample preparation, fast analysis, simultaneous multi-element analysis, and the capability for remote analysis. The LIBS has been successfully applied in various elds, such as industrial analysis, 3,4 agriculture, 5,6 medical treatment, 7 cultural heritage, and archaeology. 8 In most practical applications, the long-term repeatability of LIBS is critical.…”

Quantitative analysis of Cd based on the stress effect of minerals in rice by laser-induced breakdown spectroscopy

“…For heavy metal elements with relatively low content (ppm, ppb level), it is oen necessary to supplement more elaborate sample preparation, signal enhancement, etc., in LIBS analysis for further analysis. 14,15 It is important to note that the accumulation of heavy metals in rice is inuenced by various factors, such as geographical origin, variety, and farming practices. 16 In agricultural farming, cadmium in the environment is absorbed from the soil by the rice roots and then transferred to the above-ground part, which causes the accumulation of cadmium in the rice seeds.…”

Rapid classification of heavy metal soils from different mining areas by using a GSCV quadratic merit seeking network combined with MF-LIBS

“…Laser induced breakdown spectroscopy (LIBS) 9,10 is a plasma atomic emission spectroscopy technique based on high power pulses, which utilizes an intense pulsed laser focused on the surface of a target sample to generate a plasma, enabling quantitative and qualitative analyses of the sample's composition. As a common means of chemical analysis, LIBS not only has the advantages of rapid, multi-element detection, it also allows non-contact detection, which opens up new possibilities for high-precision and rapid detection, and has been widely used in many elds, such as food safety, 11,12 substance detection, 13 geological exploration, 14 and Mars exploration. 15 LIBS technology has developed rapidly and in a wide range of areas in the last few years, but there are still shortcomings present.…”