NDLI: Determination of elements <i>in situ</i> in green leaves by laser ablation ICP-MS using pressed reference materials for calibration

Content Provider	Royal Society of Chemistry (RSC)
Author	Nowinski, Piotr Cizdziel, James Bu, Kaixuan
Copyright Year	2012
Abstract	Laser ablation (LA) was used with double focusing sector field inductively coupled plasma mass spectrometry (ICP-MS) for direct elemental analysis of green leaves from seven species of desert plants. Pressed leaf standards (n = 7) were used as matrix matched standards for calibration and quality assurance. Nine elements (Mg, Ca, Mn, Cu, Sr, Cd, Ba, Hg and Pb) were determined in low mass resolution (m/Δm ≈ 400). Data was collected for three ablation line scans starting from near the stem to the tip of the leaf. The 213 nm laser ablation system was operated at the full energy setting (100%), with a repetition rate of 20 Hz, a spot size of 100 μm, and a scan rate of 50 μm min−1. Pressed cellulose was used for estimating detection limits, which were found to vary between 0.04 and 26 μg g−1 for Pb and Ca, respectively. Results suggest that the calibration approach is feasible for some elements (Mg, Ca, Mn, Cu, Sr, Cd, Ba) but problematic for others (Pb, Hg). Although somewhat element dependent, desert willow, autumn sage and brittle bush tended to have the highest concentrations of the elements monitored. Overall, LA-ICP-MS is a useful method for quantifying (in situ) the distribution of many elements in plant leaves.
Starting Page	564
Ending Page	569
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	4
Issue Number	2
Journal	Analytical Methods
DOI	10.1039/c1ay05577a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cellulose Laser ablation Ablation Composite material Cu LA Lead Micrometer Chilopsis Los Angeles Inductively coupled plasma mass spectrometry Salvia Ba
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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