Micro-spectrochemical analysis of document paper and gel inks by laser ablation inductively coupled plasma mass spectrometry and laser induced breakdown spectroscopy

The Discrimination and Association of Float Glass and The Quantitative Analysis of Liquids from Aerosols and Microdrops using Laser Induced Breakdown Spectroscopy

“…LIBS has also shown to provide information of discrimination on other forensic matrices, such as, drugs 188 , explosives 189,190 , soil 115 , ink 191 , cotton 27 and paint 192,193 . LIBS instrumentation is currently being manufactured commercially, allowing LIBS to be easily implemented into forensic laboratories in the future.…”

Analysis of White Latex Paints using Laser Induced Breakdown Spectroscopy for Forensic Applications

“…Elemental analyses of forensic samples has already been successfully employed on such evidence as windshield glass [1], automotive paint [2,3], paper [4], float glass, and gel ink. [5] Paints and coatings are common samples in forensic cases, which makes the ability to identify and differentiate paint origins an important tool.…”

“…Laser induced breakdown spectroscopy has successfully been used to determine elemental concentrations in a wide variety of samples, including glass [5,27], cotton [32], automobile paints [27], paper [4], and ink [4], among others. Utilizing the elemental concentrations, discrimination using LIBS were as follows: >99% for glass [5], >97% for cotton by US region [32], 97.7% for printing papers [4], and 96.4% for black gel inks [4].…”

“…Utilizing the elemental concentrations, discrimination using LIBS were as follows: >99% for glass [5], >97% for cotton by US region [32], 97.7% for printing papers [4], and 96.4% for black gel inks [4].…”

“…For example, a direct LIBS analysis of ink on paper resulted in destruction of only 9-15µg of sample. [4] In addition, it is low cost, fast, and can be used to analyze multiple elements at the same time.…”