Influence of Matrix Effect of Laser Produced Plasma for Soil Nutrient Measurements

Laser-produced plasmas exhibit variation depending on the composition and physical characteristics of the target material. This variability of plasma formation presents challenges in analyzing organic materials, since environmental and matrix conditions influence plasma characteristics. In this study, it is demonstrated that matrix effects of organic soils influence the plasma temperature and lead to deviations in laser-induced plasma formation. These findings highlight the importance of developing proper machine learning algorithms to account for the matrix effect in organic soils. These findings will be used to help improve the accuracy and reliability of laser-based analytical techniques to help machine learning algorithms in soil identification.