Persistent Link:
http://hdl.handle.net/10150/262621
Title:
Laser Trimming Tree-Ring Cores for Dendrochemistry of Metals
Author:
Sheppard, Paul R.; Witten, Mark L.
Affiliation:
Laboratory of Tree-Ring Research, University of Arizona, Tucson, Arizona 85721; Department of Pediatrics, University of Arizona, Tucson, Arizona 85721
Citation:
Sheppard, P.R., Witten, M.L. 2005. Research report: Laser trimming tree-ring cores for dendrochemistry of metals. Tree-Ring Research 61(2):87-92.
Publisher:
Tree-Ring Society
Journal:
Tree-Ring Research
Issue Date:
2005
URI:
http://hdl.handle.net/10150/262621
Additional Links:
http://www.treeringsociety.org
Abstract:
This article discusses the application of laser to trim the outer surface from tree-ring increment cores in preparation for dendrochemistry of certain metals. A source of contamination specific to dendrochemistry of metals is metal constituents, such as iron, tungsten, chromium, nickel, and cobalt, coming off tools used to collect and process cores and adhering to the sample surface. One method to eliminate this contamination is to trim off the outer surface of cores using laser. To test this application of laser, three tree-ring increment cores were collected from each of three trees. For each tree, one core was trimmed using a CO2 laser, one core was trimmed using a stainless steel razor blade, and one core was left untrimmed. The resultant cores were measured for metals using acid dissolution inductively coupled plasma mass spectroscopy. Trimmed cores had on average one-third the content of iron, tungsten, and chromium than that of untrimmed cores. Laser-trimmed cores had less of these metals than razor-trimmed cores. Razor-trimmed cores also had measurable nickel, but laser-trimmed cores had no nickel. Laser trimming is an ideal solution to potential contamination of cores with metals from increment borers without imparting other contamination from tools such as razor blades.
Type:
Article
Language:
en_US
Keywords:
Dendrochronology; Tree Rings; Dendrochemistry; Metals; Contamination; Laser
ISSN:
2162-4585; 1536-1098

Full metadata record

DC FieldValue Language
dc.contributor.authorSheppard, Paul R.en_US
dc.contributor.authorWitten, Mark L.en_US
dc.date.accessioned2012-12-14T00:15:12Z-
dc.date.available2012-12-14T00:15:12Z-
dc.date.issued2005-
dc.identifier.citationSheppard, P.R., Witten, M.L. 2005. Research report: Laser trimming tree-ring cores for dendrochemistry of metals. Tree-Ring Research 61(2):87-92.en_US
dc.identifier.issn2162-4585-
dc.identifier.issn1536-1098-
dc.identifier.urihttp://hdl.handle.net/10150/262621-
dc.description.abstractThis article discusses the application of laser to trim the outer surface from tree-ring increment cores in preparation for dendrochemistry of certain metals. A source of contamination specific to dendrochemistry of metals is metal constituents, such as iron, tungsten, chromium, nickel, and cobalt, coming off tools used to collect and process cores and adhering to the sample surface. One method to eliminate this contamination is to trim off the outer surface of cores using laser. To test this application of laser, three tree-ring increment cores were collected from each of three trees. For each tree, one core was trimmed using a CO2 laser, one core was trimmed using a stainless steel razor blade, and one core was left untrimmed. The resultant cores were measured for metals using acid dissolution inductively coupled plasma mass spectroscopy. Trimmed cores had on average one-third the content of iron, tungsten, and chromium than that of untrimmed cores. Laser-trimmed cores had less of these metals than razor-trimmed cores. Razor-trimmed cores also had measurable nickel, but laser-trimmed cores had no nickel. Laser trimming is an ideal solution to potential contamination of cores with metals from increment borers without imparting other contamination from tools such as razor blades.en_US
dc.language.isoen_USen_US
dc.publisherTree-Ring Societyen_US
dc.relation.urlhttp://www.treeringsociety.orgen_US
dc.rightsCopyright © Tree-Ring Society. All rights reserved.en_US
dc.subjectDendrochronologyen_US
dc.subjectTree Ringsen_US
dc.subjectDendrochemistryen_US
dc.subjectMetalsen_US
dc.subjectContaminationen_US
dc.subjectLaseren_US
dc.titleLaser Trimming Tree-Ring Cores for Dendrochemistry of Metalsen_US
dc.typeArticleen_US
dc.contributor.departmentLaboratory of Tree-Ring Research, University of Arizona, Tucson, Arizona 85721en_US
dc.contributor.departmentDepartment of Pediatrics, University of Arizona, Tucson, Arizona 85721en_US
dc.identifier.journalTree-Ring Researchen_US
dc.description.collectioninformationThis item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. It was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org.en_US
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