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Comparison of manual and automated pretreatment methods for AMS radiocarbon dating of plant fossils

January 1, 1994

A new automated pretreatment system for the preparation of materials submitted for accelerator mass spectrometry (AMS) analysis is less time-consuming and results in a higher sample yield. The new procedure was tested using two groups of plant fossils: one group was pretreated using the traditional method, and the second, using the automated pretreatment apparatus. The time it took to complete the procedure and the amount of sample material remaining were compared. The automated pretreatment apparatus proved to be more than three times faster and, in most cases, produced a higher yield. A darker discoloration of the KOH solutions was observed indicating that the automated system is more thorough in removing humates from the specimen compared to the manual method. -Authors

Publication Year 1994
Title Comparison of manual and automated pretreatment methods for AMS radiocarbon dating of plant fossils
Authors L. A. Bradley, Thomas W. Stafford
Publication Type Article
Publication Subtype Journal Article
Series Title Radiocarbon
Index ID 70017500
Record Source USGS Publications Warehouse