Improved Method for the Determination of the Oxygen Isotopic Composition of Cellulose

Peter E. Sauer, Leonel d.S.L.O. Sternberg

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

A modification of a chemical preparation procedure for oxygen isotope analysis of cellulose has been developed which yields greater precision and requires less time for sample preparation. In the place of isoquinoline, zinc is used to remove HCl from the reaction products of the sample and HgCl2. The two methods give systematically different results because isoquinoline biases measurements by contaminating the sample with additional CO2. For the zinc method, precision is ±0.2%o (1σ standard deviation) compared with ±0.9%o for the isoquinoline method.

Original languageEnglish (US)
Pages (from-to)2409-2411
Number of pages3
JournalAnalytical Chemistry
Volume66
Issue number14
DOIs
StatePublished - Jul 1 1994

ASJC Scopus subject areas

  • Analytical Chemistry

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