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Title: Assay development status report for total cyanide

Technical Report ·
DOI:https://doi.org/10.2172/10161338· OSTI ID:10161338
 [1]; ;  [2]
  1. Westinghouse Hanford Co., Richland, WA (United States)
  2. Pacific Northwest Lab., Richland, WA (United States)

A validated cyanide assay that is applicable to a variety of tank waste matrices is necessary to resolve certain waste tank safety issues and for purposes of overall waste characterization. The target for this effort is an assay with an applicable range of greater than 1,000 ppM (0.10 wt%) total cyanide and a confidence level greater than 80%. Figure 1 illustrates the operating regime of the proposed cyanide assay method. The Assay Development Status Report for Total Cyanide will summarize the past experience with cyanide analyses on-tank waste matrices and will rate the status of the analytical methods used to assay total cyanide (CN{sup {minus}} ion) in the tank waste matrices as acceptable or unacceptable. This paper will also briefly describe the current efforts for improving analytical resolution of the assays and the attempts at speciation.

Research Organization:
Westinghouse Hanford Co., Richland, WA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC06-87RL10930
OSTI ID:
10161338
Report Number(s):
WHC-EP-0635; ON: DE93014628; TRN: 93:015306
Resource Relation:
Other Information: PBD: Feb 1993
Country of Publication:
United States
Language:
English