Recent Developments in the Procedures Used at the SSCER Laboratory for the Routine Preparation of Lithium Carbide
Issue Date
1998-01-01Keywords
pyrolysiscarbides
lithium
lithium carbide
sorption
alloys
alkali metals
instruments
liquid scintillation methods
metals
experimental studies
organic compounds
sample preparation
C 14
carbon
isotopes
radioactive isotopes
carbon dioxide
absolute age
Metadata
Show full item recordCitation
Skripkin, V. V., & Kovaliukh, N. N. (1998). Recent developments in the procedures used at the SSCER laboratory for the routine preparation of lithium carbide. Radiocarbon, 40(1), 211-214.Journal
RadiocarbonDescription
From the 16th International Radiocarbon Conference held in Gronigen, Netherlands, June 16-20, 1997.Additional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
In this paper we describe and discuss the advantages from improvements in equipment design and operating procedures developed at the State Scientific Centre of Environmental Radiogeochemistry (SSCER) laboratory in Kiev. Two experimental areas are considered, viz. 1. The direct chemisorption into a lithium alloy of carbonaceous gases produced by the controlled thermal degradation (pyrolysis) of organic materials under vacuum. This approach offers the advantage of a single stage, highly efficient and economical procedure for the production of lithium carbide. It is applicable for most types of sample material encountered in routine dating work and including organic detritus dispersed in a highly (up to 95% by weight) mineral matrix and/or carbonates. Bone collagen can also be processed without the need for its prior extraction and purification. 2. A conical thin walled reaction vessel for achieving improved and reproducible recoveries in the production of lithium carbide from CO2 gas. This apparatus allows a much improved control over the surface dependent reaction in instances where there is no option other than the direct interaction of molten lithium with prepared CO2 gas.Type
Proceedingstext
Language
enISSN
0033-8222ae974a485f413a2113503eed53cd6c53
10.1017/S0033822200018063