PathogenicEscherichia colistrain discrimination using laser-induced breakdown spectroscopy

Pathogenic Escherichia coli strain discrimination using laser-induced breakdown spectroscopy

A pathogenic strain of bacteria, Escherichia coli O157:H7 enterohemorrhagic E. coli or EHEC , has been analyzed by laser-induced breakdown spectroscopy LIBS with nanosecond pulses and compared to three nonpathogenic E. coli strains: a laboratory strain of K-12 AB , a derivative of the same strain termed HF4714, and an environmental strain, E. coli C Nino C . A discriminant function analysis DFA...

Laser-Induced Breakdown Spectroscopy

Laser Induced Breakdown Spectroscopy

Laser-induced breakdown spectroscopy (LIBS) is a powerful analytical technique that can be used for the detection and characterization of materials. In LIBS, a focused laser beam is used to generate a plasma plume on the surface of solid and liquid samples or inside the sample volume of gases, liquids, and aerosols. Each excited atom in the plasma emits a unique set of spectral lines, particula...

Laser Induced Breakdown Spectroscopy

Esta revisão descreve os aspectos fundamentais, a instrumentação, as aplicações e tendências futuras de uma técnica analítica que se encontra em seu estágio de consolidação e que está em vias de estabelecer o seu nicho entre as técnicas espectrofotométricas modernas. A técnica é denominada Espectroscopia de Emissão em Plasma Induzido por Laser (em inglês, Laser Induced Breakdown Spectroscopy, L...

Laser Induced Breakdown Spectroscopy (LIBS)