2005
DOI: 10.3959/1536-1098-61.2.87
|View full text |Cite
|
Sign up to set email alerts
|

Laser Trimming Tree-Ring Cores for Dendrochemistry of Metals

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 la… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

0
3
1

Year Published

2007
2007
2022
2022

Publication Types

Select...
6

Relationship

1
5

Authors

Journals

citations
Cited by 9 publications
(4 citation statements)
references
References 3 publications
0
3
1
Order By: Relevance
“…On the other hand, the cutting procedure can be a source of contamination from the knife. In our analysis, although the risk of Pb contamination from knife seems to be very low (Shepard and Witten, 2005), it may be a possible explanation for peak A, which is not mirrored in the unprocessed and sanded wood records. To limit the possibility of contamination, rinsing the cutting blade in acetone, as we did, is recommended.…”
Section: Fig 4 Comparison Of Coefficient Of Variation (Cv) Values Fcontrasting
confidence: 65%
See 1 more Smart Citation
“…On the other hand, the cutting procedure can be a source of contamination from the knife. In our analysis, although the risk of Pb contamination from knife seems to be very low (Shepard and Witten, 2005), it may be a possible explanation for peak A, which is not mirrored in the unprocessed and sanded wood records. To limit the possibility of contamination, rinsing the cutting blade in acetone, as we did, is recommended.…”
Section: Fig 4 Comparison Of Coefficient Of Variation (Cv) Values Fcontrasting
confidence: 65%
“…This in turn may produce higher and temporally variable background Pb levels. The possibility of surface contamination from the borer itself during core extraction from the tree seems doubtful in the case of Pb because borers are mainly made of stainless steel with some hardeners such as tungsten (Shepard and Witten, 2005).…”
Section: Fig 4 Comparison Of Coefficient Of Variation (Cv) Values Fmentioning
confidence: 99%
“…Contamination of the core samples with tungsten and other metals from the increment borer itself is possible because borers are made of hardened steel. To eliminate this potential contamination, the outer surface of the cores was removed by laser trimming, yielding inner cores that had never been touched by metal tools (Sheppard and Witten 2005). Inner cores were then broken into the time periods using a nonmetallic, ceramic knife.…”
Section: Methodsmentioning
confidence: 99%
“…Construction of soil pollution histories from tree increment cores, termed "dendroanalysis" (Nabais et al, 1999) or "dendrochemistry" (Sheppard and Witten, 2005), is somewhat controversial. Several controlled studies have shown that relative levels of metals in tree rings do indeed reflect concentrations in the immediate environment at the time the ring was grown (Hagemeyer et al, 1993(Hagemeyer et al, , 1994aHagemeyer and Weinand, 1996).…”
Section: Application To Natural Samplesmentioning
confidence: 99%