Improvement of laser induced breakdown spectroscopy technique using double pulse schemes

espanolLa espectroscopia de plasmas inducidos por laser (LIBS) es una tecnica empleada en el analisis de materiales que puede aplicarse a solidos, liquidos o gases, y no requiere de la preparacion de la muestra, ni trabajar en condiciones atmosfericas particulares. Sin embargo, posee una baja sensibilidad y reproducibilidad comparada con otros metodos. Con el objetivo de mejorar las prestaciones analiticas de la tecnica, se han empleado dos configuraciones de doble pulso laser en el caso de muestras metalicas. EnglishLaser Induced Breakdown Spectroscopy (LIBS) is a technique that allows a straightforward and fast analysis of materials. Despite of its multiple advantages, including analysis of solids, liquids or gases, without sample preparation under atmospheric conditions, LIBS suffers several drawbacks such as relatively poor sensitivity and lack of reproducibility in comparison with others methods. In an effort to improve its analytical performance, two different double pulse approaches, a collinear femtosecond and an orthogonal nanosecond schemes, have been tested in the case of metallic samples.