title: Analysis of Plant Leaves Using Laser Ablation Inductively Coupled Plasma Optical Emission Spectrometry: Use of Carbon to Compensate for Matrix Effects.
abstract: Direct solid sampling by laser ablation into an inductively coupled plasma synchronous vertical dual view optical emission spectroscope (LA-SVDV-ICP-OES) was used for the elemental analysis of nutrient elements Ca, B, Mn, Mg, K, and Zn and essential (non-metallic) elements P and S in plant materials. The samples were mixed with paraffin as a binder, an approach that provides better cohesion of the particles in the pellets in addition to supplying carbon to serve as an internal standard (atomic line C I 193.027 nm) as a way to compensate for matrix effects, and/or variations in the ablation process. Precision was in the range of 1-8% relative standard deviation (RSD) with limit of detection in the range of 0.4-1 mg/kg-1and 25-640 mg/kg-1for metallic and non-metallic elements, respectively.
authors.affiliation: 1 Escuela de Química, Facultad de Ciencias, Universidad Central de Venezuela, Caracas, Venezuela.|2 Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
authors.forename: José
authors.initials: J
authors.lastname: Chirinos
authors.affiliation: 2 Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
authors.forename: Dayana
authors.initials: D
authors.lastname: Oropeza
authors.affiliation: 2 Lawrence Berkeley National Laboratory, Berkeley, CA, USA.|3 Applied Spectra, Inc., Fremont, CA, USA.
authors.forename: Jhanis
authors.initials: J
authors.lastname: González
authors.affiliation: 2 Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
authors.forename: Vassilia
authors.initials: V
authors.lastname: Zorba
authors.affiliation: 2 Lawrence Berkeley National Laboratory, Berkeley, CA, USA.|3 Applied Spectra, Inc., Fremont, CA, USA.
authors.forename: Richard E
authors.initials: RE
authors.lastname: Russo
mesh_terms: D002244:Carbon / Q000737:chemistry*; D007834:Lasers; D057230:Limit of Detection; D016014:Linear Models; D008670:Metals / Q000032:analysis; D010758:Phosphorus / Q000032:analysis; D018515:Plant Leaves / Q000737:chemistry*; D015203:Reproducibility of Results; D013054:Spectrophotometry, Atomic / Q000379:methods*; D013455:Sulfur / Q000032:analysis
chemical_list: D008670:Metals; D010758:Phosphorus; D013455:Sulfur; D002244:Carbon
keywords: ICP-OES; Laser ablation; inductively coupled plasma optical emission spectrometry; plant samples