Effects of sample pretreatment and particle size on the determination of nitrogen in soil by portable LIBS and potential use on robotic-borne remote Martian and agricultural soil analysis systems

Xiu T. Yan, Karen M. Donaldson, Christine M. Davidson, Yichun Gao, Hanling Wu, Andrew M. Houston, Aron Kisdi

Research output: Contribution to journalArticlepeer-review

Abstract

Field determination of nitrogen in soil is of interest for both terrestrial and Martian applications. Improved management of soil nitrogen levels on Earth could benefit global food production, whilst the determination of soil nitrogen on Mars is required to assess the planet's future habitability. In this study, a mobile laser induced breakdown spectroscopy (LIBS) system with a 1064 nm Nd:YAG laser delivering 25 mJ per pulse was used to assess the effects of sample pretreatment on the measurement of nitrogen in soil. Although pelletisation was preferred, simply milling the sample to
Original languageEnglish
Pages (from-to)36886-36894
Number of pages9
JournalRSC Advances
Volume8
Issue number64
DOIs
Publication statusPublished - 31 Oct 2018
Externally publishedYes

Keywords

  • soil nitrogen levels
  • mobile laser induced breakdown spectroscopy (LIBS) system
  • remote rover-based analytical platform

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