The determination of inorganic anions in brine samples by ion chromatography

Conference · Thu Nov 30 23:00:00 EST 1995

OSTI ID:126233

Montoya, V M; Sweetin, D L ^[1]

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1. Los Alamos National Lab., NM (United States)

With the advent of ion chromatography, the determination of inorganic anions in aqueous solutions has been relatively straightforward. However, there are significant complications when ion chromatography is used to determine trace concentrations of inorganic anions in brine matrices. The analysis is further complicated when only a limited sample volume is available. A Danes DX-100 ion chromatograph is used with the new Danes AS12/AG12 columns and suppressed conductivity detection. A mixed eluent system is used in order to analyze anions in the complex matrices of the brines. The sample introduction procedure will also be described. In the brine matrices, nitrate, orthophosphate, and sulfate ions can be determined within 5% accuracy and fluoride ion can be determined within 10% accuracy.

• OSTI ID: 126233
• Report Number(s): CONF-950402--
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
40 CHEMISTRY
ACCURACY
ALPHA-BEARING WASTES
ANIONS
BRINES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
NITRATES
PHOSPHATES
SULFATES
UNDERGROUND DISPOSAL
WIPP