Document Detail

Carbon and oxygen isotope working standards from C3 and C4 photosynthates.
MedLine Citation:
PMID:  16870558     Owner:  NLM     Status:  MEDLINE    
A preparation of organic working standards for the online measurement of 13C/12C and 18O/16O ratios in biological material is presented. The organic working standards are simple and inexpensive C3 and C4 carbohydrates (sugars or cellulose) from distinct geographic origin, including white sugar, toilet and XEROX papers from Switzerland, maize from Ivory Coast, cane sugar from Brazil, papyrus from Egypt, and the core of the stem of a Cyperus papyrus plant from Kenya. These photosynthetic products were compared with International Atomic Energy standards CH-3 and CH-6 and other calibration materials. The presented working standards cover a 15% range of 13C/12C ratios and 9% for 18O/16O, with a precision<+/-0.2% for n>10.
Jorge E Spangenberg
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Isotopes in environmental and health studies     Volume:  42     ISSN:  1025-6016     ISO Abbreviation:  Isotopes Environ Health Stud     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-07-27     Completed Date:  2007-01-25     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  9602611     Medline TA:  Isotopes Environ Health Stud     Country:  England    
Other Details:
Languages:  eng     Pagination:  231-8     Citation Subset:  IM    
Institute of Mineralogy and Geochemistry, University of Lausanne, Humense, 1015, Lausanne, Switzerland.
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MeSH Terms
Carbohydrates / chemistry
Carbon Isotopes / analysis*
Cellulose / chemistry
Chemistry Techniques, Analytical / standards*
Cyperus / chemistry
Oxygen Isotopes / analysis*
Plant Leaves / chemistry
Plant Stems / chemistry
Reference Standards
Reg. No./Substance:
0/Carbohydrates; 0/Carbon Isotopes; 0/Oxygen Isotopes; 9004-34-6/Cellulose

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