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Anion chromatography with low-conductivity eluents

Conference ·
A new and very simple system is described for separation and determination of mixtures of inorganic and organic anions. The column is filled with a macroporous anion-exchange resin of 0.007 to 0.07 meq/g exchange capacity. The eluent is a very dilute (0.0001 to 0.00065 M) solution of an organic acid salt, such as potassium benzoate or phthalate. The eluent conductance is sufficiently low that the separated anions can be detected with a simple conductance detector. Numerous examples of actual separations are shown. In some cases concentrations of anions below 1 ppM could be detected. The applicability of the new system to real samples is demonstrated by several examples. 10 figures, 2 tables.
Research Organization:
Ames Lab., IA (USA)
DOE Contract Number:
W-7405-ENG-82
OSTI ID:
6013464
Report Number(s):
IS-M-187; CONF-790931-2
Country of Publication:
United States
Language:
English