title: Ultrasensitive nanoparticle enhanced laser-induced breakdown spectroscopy using a super-hydrophobic substrate coupled with magnetic confinement.
abstract: In this study, we developed a substrate to enhance the sensitivity of LIBS by 5 orders of magnitude. Using a combination of field enhancement due to the metal nanoparticles in the substrate, the aggregate effect of super-hydrophobic interfaces and magnetic confinement, we performed a quantitative measurement of copper in solution with concentrations on the ppt level. We also demonstrated that the substrate improves quantitative measurements by providing an opportunity for internal standardization.
authors.affiliation: National Engineering Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China. damingdong@hotmail.com.
authors.forename: Daming
authors.initials: D
authors.lastname: Dong
authors.forename: Leizi
authors.initials: L
authors.lastname: Jiao
authors.forename: Xiaofan
authors.initials: X
authors.lastname: Du
authors.forename: Chunjiang
authors.initials: C
authors.lastname: Zhao