Ao longo das últimas duas décadas uma intensa atividade foi realizada no estudo e desenvolvimento da técnica analítica de espectroscopia de emissão óptica com plasma induzido por laser, do inglês, (LIBS) em diversas areas de pesquisa academica e aplicada, incluindo a agricultura. LIBS é uma técnica rapida e confiavel adequada para a análise simultânea qualitativa e quantitativa de elementos em amostras de diferentes naturezas e origens. Este trabalho revisa e discute alguns artigos sobre aplicações de LIBS e sua viabilidade para o estudo na agricultura, com foco em solos, plantas e adubos. Os resultados obtidos na detecção e quantificação dos elementos identificação e discriminação são brevemente revisados e discutidos. Em particular, gostaríamos de chamar a atenção sobre como LIBS poderia ser adotado no meio-ambiente brasileiro, com resultados promissores. Por exemplo, novos métodos que permitem medições de C organico in situ são cruciais para solos da Amazonia e um encorajador metodo para quantificar C em solos brasileiros sera apresentado baseado em linhas de emissão atomica obtidos por um sistema LIBS de bancada. Além disso, medições de campo também são possíveis utilizando um aparelho portátil compacto LIBS e realmente útil em ambiente hostil, por exemplo, a região da Amazônia.
Over the past two decades an intense activity has been conducted in the study and development of the analytical technique of laser-induced breakdown spectroscopy (LIBS) in several fields of academic and applicative research, including agriculture. LIBS is a fast and reliable technique suitable for the simultaneous qualitative and quantitative analysis of major and trace elements in samples of various nature and origin. This review reports and discusses some works on LIBS applications and his feasibility to the study of agriculture with focus on soils, plants and composts. Results obtained on element detection and quantification, identification and discrimination are reviewed and briefly discussed. In particular, we would focus the attention on how LIBS could be adopted on the Brazilian environment with promising results. For example, new methods that allow soil C measurements in-situ are crucial for Amazonian soils and an encouraging resolution method to quantify C in Brazilian soils would be given by means of atomic emission lines obtained by a portable LIBS system. Furthermore, field measurements are also possible by using compact portable LIBS apparatus really helpful in hostile environment, e.g., Amazonia region.
LASER-INDUCED BREAKDOWN SPECTROSCOPY (LIBS): A NEW VERSATILE WAY TO ANALYZE AND MONITOR SOILS, PLANTS AND COMPOSTS
GS Senesi;
2014
Abstract
Over the past two decades an intense activity has been conducted in the study and development of the analytical technique of laser-induced breakdown spectroscopy (LIBS) in several fields of academic and applicative research, including agriculture. LIBS is a fast and reliable technique suitable for the simultaneous qualitative and quantitative analysis of major and trace elements in samples of various nature and origin. This review reports and discusses some works on LIBS applications and his feasibility to the study of agriculture with focus on soils, plants and composts. Results obtained on element detection and quantification, identification and discrimination are reviewed and briefly discussed. In particular, we would focus the attention on how LIBS could be adopted on the Brazilian environment with promising results. For example, new methods that allow soil C measurements in-situ are crucial for Amazonian soils and an encouraging resolution method to quantify C in Brazilian soils would be given by means of atomic emission lines obtained by a portable LIBS system. Furthermore, field measurements are also possible by using compact portable LIBS apparatus really helpful in hostile environment, e.g., Amazonia region.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.