Consequences of a rapid cellulose extraction technique for oxygen isotope and radiocarbon analyses

LDEO Publication: 
Publication Type  Journal Article
Year of Publication  2008
Authors  Anchukaitis, K. J.; Evans, M. N.; Lange, T.; Smith, D. R.; Leavitt, S. W.; Schrag, D. P.
Journal Title  Analytical Chemistry
Volume  80
Issue  6
Pages  2035-2041
Journal Date  Mar 15, 2008
ISBN Number  0003-2700
Accession Number  ISI:000254017000025
LDEO Publication Number  7133
Key Words  chlorine-free method; arizona ams facility; bomb c-14 data; tree-rings; alpha-cellulose; wheat-straw; acetylated wood; organic-matter; whole wood; carbon

We use infrared, radiocarbon, and stable isotope analyses to investigate the purity of cellulose extracted from wood using a rapid processing technique. Replicate laboratory standards processed using the standard Brendel method are not significantly different with respect to delta O-18 from those prepared using traditional techniques, although the process does result in a slight acetylation of the wood samples. Radiocarbon comparisons, however, show significant differences. We conclude that the standard Brendel method is appropriate for developing stable isotope time series for high-resolution isotope dendroclimatology but must be used with caution for precision radiocarbon measurements.


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URL  <Go to ISI>://000254017000025
DOI  Doi 10.1021/Ac7020272