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U.S. Department of Energy
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Dual measurement of 13C and 14 isotopic composition to identify

Technical Report ·
OSTI ID:6409378

Samples of groundwater were collected in the spring of 1996 for *jC and 14C determinations of dissolved inorganic carbon (DIC). A sample of the FHC collected during steam injection was also analyzed. Groundwater was collected after appropriate pumping times in I-CHEM l25ml amber glass bottles fitted with l/8 inch teflon-coated rubber septa inserted into threaded caps. Bottles were filled leaving approximately a two inch head space, treated with 4 drops of saturated HgC12 solution, and stored upside- down refrigerated until analyses. Analyses were performed within 48 hours of collection. Two duplicates were collected using evacuated glass cylinders equipped with greased stopcocks and a l/4 inch rubber septa plug. Results of these duplicate samples were identical to those collected in the septa bottles (see Table 1).

Research Organization:
Lawrence Livermore National Laboratory, Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Defense Programs (DP)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
6409378
Report Number(s):
UCRL-ID-132471; ON: DE00002890
Country of Publication:
United States
Language:
English