Classification of polymers by determining of C1:C2:CN:H:N:O ratios by laser-induced plasma spectroscopy (LIPS)

Elemental detection of arabica and robusta green bean coffee using laser-induced plasma spectroscopy

“…This results demonstrated that the ratio intensity of CN/C and Ca/C in arabica coffee can be used as a marker. For organic materials, measuring both atomic and molecular emission lines and their intensity ratios are favorable for discrimination between organic materials [12][13][14][15][16][17]. The results clearly demonstrate the feasibility of application to the quantitative spectrochemical analysis of coffee using laser induced plasma spectroscopy.…”

Laser-Induced Breakdown Spectroscopy: Capabilities and Applications

“…With recent advances in broadband spectrometers and chemometric analysis techniques, the identification of non-metals has become increasingly widespread with LIBS. LIBS has been used for the identification of polymers (43)(44)(45)(46)(47)(48)(49)(50)(51)(52)(53)(54)(55)(56)(57), thermoplasts (58)(59)(60), and other organic compounds (61,62), including explosives (34)(35)(36)(37)(38)(39)(40)(41)(42)(63)(64)(65). Figure 4 shows the LIBS spectra of various thermoplastic polymers from McMaster-Carr acquired with a commercial LIBS system (Applied Photonics, Ltd).…”

Laser Induced Breakdown Spectroscopy for Classification of High Energy Materials using Elemental Intensity Ratios

“…LIBS technique equipped with multivariate statistics has found intensive applications in the fields of explosives [13][14][15][16][17][18][19][20][21][22][23][24] , minerals [25][26] , and in pharmaceuticals [27][28] . Some research groups have successfully performed classification based on elemental intensity ratios obtained in the LIBS spectra [29][30][31] [AN] based on a ratiometric method. AP and AN are generally used as oxidizers in solid rocket propellants.…”