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Analysis of Iodine-129 in aqueous samples by inductively coupled plasma-mass spectrometry

Technical Report ·
DOI:https://doi.org/10.2172/10109561· OSTI ID:10109561
;  [1];  [2]
  1. Westinghouse Savannah River Co., Aiken, SC (United States)
  2. Turner Scientific, Manchester, GB (England)

An inductively coupled plasma - mass spectrometry (ICP-MS) method was developed to determine the {sup 129}I content in aqueous environmental samples. Due to interference from xenon, direct measurement of {sup 129}I could not be made on the ICP-MS. An ion-exchange technique is used to concentrate the Iodine from one liter samples to 30 mL. The 30 mL eluant from the anion-exchange column is then introduced to the ICP-MS. The detection limit of the procedure is {le}O.5 pCi/L. Several samples from the Savannah River near the Savannah River Site (SRS) have been analyzed for {sup 129}I by this procedure. Concentrations of {sup 129}I in the Savannah River ranged from 0.05{plus_minus}0.12 to 0.21{plus_minus}0.49 pCi/L (95% CL). Below a seepage basin, in Four Mile Creek on the Savannah River Site, {sup 129}I concentrations were as high as 2.31{plus_minus}1.22 pCi/L. Before exiting the SRS the {sup 129}I concentration had decreased to 0.30{plus_minus}0.16 pCi/L by dilution in Four Mile Creek.

Research Organization:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC09-89SR18035
OSTI ID:
10109561
Report Number(s):
WSRC-MS--92-280; CONF-9211116--2; ON: DE93002694
Country of Publication:
United States
Language:
English