The analysis of trace anions in concentrated nitric acid requires two online coupled ion chromatography systems for the required selectivity. The first system acts as preseparator of the trace anions from the matrix compounds. The trace anions are preconcentrated by means of a heart-cut valve and a
Trace Anion Determination in Concentrated Nitric Acid by Means of Two Coupled Ion Chromatography Systems
โ Scribed by Schmidt, Nicole ;Biesaga, Magdalena ;Seubert, Andreas
- Publisher
- Springer-Verlag
- Year
- 2004
- Weight
- 318 KB
- Volume
- 146
- Category
- Article
- ISSN
- 0344-838X
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๐ SIMILAR VOLUMES
A simple, sensitive and rapid method for determination of trace anions (chloride, nitrite, bromide, nitrate and sulphate ion) in concentrated inorganic acids (hydrochloric, nitric, phosphoric and sulphuric) has been developed. Each sample is diluted lOWOO-fold in water and neutralized with sodium hy
The use of the hydroxide eluents generated on-line by an automated hydroxide eluent generator system was compared with the use of hydroxide eluents prepared off-line in the ion chromatographic determination of trace inorganic and organic anions in high-purity water samples. The use of the hydroxide