Determination of anions at trace levels in power plant water samples by ion chromatography with electrolytic eluent generation and suppression

An ion chromatographic method was developed for the determination of nine inorganic and organic acid anions at sub- to low-μg/l levels in power plant water samples. In this method, samples were injected using a large-volume direct injection technique, the analyte anions were separated on a hydroxide...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Chromatography A 2002-05, Vol.956 (1), p.129-138
Main Authors: Lu, Zhongqing, Liu, Yan, Barreto, Victor, Pohl, Chris, Avdalovic, Nebojsa, Joyce, Robert, Newton, Beverly
Format: Article
Language:English
Subjects:
Analytical chemistry
Anions - analysis
Applied sciences
Chemistry
Chromatographic methods and physical methods associated with chromatography
Chromatography, Liquid - methods
Electrolytes - chemistry
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fossil Fuels
Industrial wastewaters
Inorganic anions
Installations for energy generation and conversion: thermal and electrical energy
Organic acids
Other chromatographic methods
Pollution
Power Plants
Reproducibility of Results
Sensitivity and Specificity
Thermal power plants
Wastewaters
Water treatment and pollution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An ion chromatographic method was developed for the determination of nine inorganic and organic acid anions at sub- to low-μg/l levels in power plant water samples. In this method, samples were injected using a large-volume direct injection technique, the analyte anions were separated on a hydroxide-selective anion-exchange column using high-purity hydroxide eluents generated by an on-line electrolytic eluent generator and detected using the suppressed conductivity detection method. The method performance was evaluated by analyzing synthetic water samples containing additives encountered in the power plant water samples and four water samples from a fossil fuel power plant. The relative standard deviations of retention times of analyte ions separated on the hydroxide-selective anion-exchange column were less than 0.4%. The recoveries of analyte ions spiked into the synthetic water samples at concentrations of 0.13–1.0 μg/l were in the range of 70–120%. The method detection limits for analyte ions in deionized water were 0.0099, 0.0056, 0.019, 0.057, 0.0084, 0.023, 0.067, 0.037, and 0.079 μg/l for fluoride, acetate, formate, chloride, nitrite, sulfate, bromide, nitrate, and phosphate, respectively.
ISSN:0021-9673
DOI:10.1016/S0021-9673(02)00143-7