title: Evaluation of the potential of laser-induced breakdown spectroscopy for detection of trace element in liquid.
abstract: The analytical figure of merit of the potential of laser-induced breakdown spectroscopy (LIBS) has been evaluated for detection of trace element in liquid. LIBS data of Mg, Cr, Mn, and Re were studied. Various optical geometries, which produce the laser spark in and at the liquid sample, were tested. The calibration curves for Mg, Cr, Mn, and Re were obtained at the optimized experimental conditions with bulk liquid and in liquid jet. It was found that measurements using a liquid jet provide better detection limits than bulk liquid measurements. The limits of detection (LOD) of Mg, Cr, Mn, and Re in the present liquid jet measurement are found to be 0.1, 0.4, 0.7, and 8 ppm, respectively. The LOD of Mg using Mg 279.55 nm was compared with the values found in other liquid work.
authors.affiliation: Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University, Starkville, Mississippi 39759-7704, USA.
authors.forename: Fang-Yu
authors.initials: FY
authors.lastname: Yueh
authors.forename: Ramesh C
authors.initials: RC
authors.lastname: Sharma
authors.forename: Jagdish P
authors.initials: JP
authors.lastname: Singh
authors.forename: Hansheng
authors.initials: H
authors.lastname: Zhang
authors.forename: William A
authors.initials: WA
authors.lastname: Spencer
mesh_terms: D002138:Calibration; D004784:Environmental Monitoring / Q000379:methods*; D007834:Lasers; D011850:Radioactive Waste; D013057:Spectrum Analysis / Q000379:methods*; D013667:Technetium / Q000032:analysis; D014131:Trace Elements / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis
chemical_list: D011850:Radioactive Waste; D014131:Trace Elements; D014873:Water Pollutants; D013667:Technetium