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Laser Ablation ICP-MS Analysis of Faviidae Corals for Environmental Monitoring of a Tropical Estuary

Munksgaard, Niels C., Antwertinger, Yasmin J. and Parry, David L. (2004). Laser Ablation ICP-MS Analysis of Faviidae Corals for Environmental Monitoring of a Tropical Estuary. Environmental Chemistry,1(3):188-196.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 11 times in Scopus Article | Citations

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Title Laser Ablation ICP-MS Analysis of Faviidae Corals for Environmental Monitoring of a Tropical Estuary
Author Munksgaard, Niels C.
Antwertinger, Yasmin J.
Parry, David L.
Journal Name Environmental Chemistry
Publication Date 2004
Volume Number 1
Issue Number 3
ISSN 1449-8979   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-33644803141
Start Page 188
End Page 196
Total Pages 9
Place of Publication Australia
Publisher CSIRO Publishing
Field of Research 0301 - Analytical Chemistry
0399 - Other Chemical Sciences
ENVIRONMENTAL SCIENCES
HERDC Category C1 - Journal Article (DEST)
Abstract An LA-ICP-MS linescan procedure has been developed for the determination of sub-millimetre scale elemental compositions of Al, Ba, Cu, La, Mg, Mn, Pb, Rb, Sr, U, and Zn in corallite walls of Faviidae corals, with the aim of establishing coral-based pollution monitoring in a tropical estuary. By selectively analyzing corallite walls, analytical signals from voids, organic, and detrital phases were minimized. Although the relative ablation yields of coral aragonite and NIST glass calibration standards differed and was dependent on pulse energy, accurate internal-standard normalized results could be verified for Ba, Cu, La, Mn, Pb, Sr, U, and Zn through the use of a secondary carbonate standard (MACS-1) and comparison with solution ICP-MS analysis. Signal smoothing and pre-acquisition surface cleaning procedures were applied. Corallite wall compositions varied by factors of up to five over distances of a few hundred micrometres. Significantly, the compositional variations along and perpendicular to the coral growth axis were of similar magnitude on a sub-millimetre scale. Consequently, compositional variations along the growth axis could not be interpreted chronologically on a sub-annual time scale. However, compositional records based on multi-annual integrated line scans should still reflect long-term environmental influences.
DOI http://dx.doi.org/10.1071/EN04058   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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