Multianion analysis, application of high performance and related chromatographic techniques - Determination of Anions in Natural and Treated Waters - page 713

13.4 Ion pairing chromatography
13.4.1 Non saline waters
Bidling Meyer et al. [20] have studied the ion pairing chromatographic determination of
anions using an ultraviolet absorbing co-ion in the mobile
Bidling Meyer et al. [21] have also discussed the ion pair chromatographic
determination of anions using an ultraviolet absorbing co-ion in the molule phase. The
separation and spectrophotometric determination of otherwise non-ultraviolet absorbing
anions is possible. Spectrophotometric detection was comparable to conductiometric
detection at nanogram levels for the eight anions investigated.
13.5 Micelle exclusion chromatography
13.5.1 Non saline waters
13.5.1.1 Thiocyanate, sulphite and sulphide
Gonzalez et al. [22] have applied micelle analysis in the kinetic multicomponent analysis
for the simultaneous determination of thiocyanate, sulphite and sulphide in non saline
waters. The method involved reaction of the anions with S,S ′ dithiobis(2-nitrobenzoic
acid) in aqueous cetyltrimethyl ammonium bromide micelles. Cyanide, sulphide and
sulphite were determined at concentrations, respectively, down to 0.5-1.5×10 −4 M 0.2-
1×10 − 4 M and 0.2-1.5×10 −3 M with a relative error of less than 5%.
13.5.1.2 Nitrite, nitrate, bromide, iodide and iodate
Okada [23] has applied micelle exclusion chromatography to the determination of nitrite,
nitrate, bromide, iodide and iodate in non saline waters.
13.5.1.3 Thiosulphate, cyanide and thiocyanate
Jones [24] carried out a simultaneous separation of non-organic cations (eg calcium,
potassium and sodium) and anions (eg nitrate, thiosulphate, cyanide and thiocyanate) by
ion chromatography using a single column coated with weak/strong charged three
welterionic bile salt micelles.
References
1 Takeuchi, T., Suzuki, E. and Ishii, D. Journal of Chromatography , 447 , 221 (1988).
2 Stetzenbach, K.J. and Thompson, G.M. Ground Water , 21 , 36 (1983).
3 Lee, S.H. and Field, I.R. Analytical Chemistry , 56 , 2647 (1984).