Robust Remote Sensing of Trace-Level Heavy-Metal Contaminants in Water Using Laser Filaments.

ABSTRACT: Water is the major natural resource that enables life on our planet. Rapid detection of water pollution that occurs due to both human activity and natural cataclysms is imperative for environmental protection. Analytical chemistry-based techniques are generally not suitable for rapid monitoring because they involve collection of water samples and analysis in a laboratory. Laser-based approaches such as laser-induced breakdown spectroscopy (LIBS) may offer a powerful alternative, yet conventional LIBS relies on the use of tightly focused laser beams, requiring a stable air-water interface in a controlled environment. Reported here is a proof-of-principle, quantitative, simultaneous measurement of several representative heavy-metal contaminants in water, at ppm-level concentrations, using ul

SUBMITTER: Li H 

PROVIDER: S-EPMC6383966 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature