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Determination of Sulphate in Beverages by Spectrophotometric Flow Injection Analysis
2006
FIA研究懇談会会誌
An inexpensive FI-manifold and a minicolumn packed with cation exchanger resin with spectrophotometric detection are described for the determination of sulphate ions. It is based on the competitive reaction of SO 4 2and methythymol blue (MTB) with barium(II) in aqueous solution. Measurements were made at 610 nm. Conditions for the quantitation of sulphate ions were optimized using univariate and simplex methods. The cation exchange minicolumn was used to overcome some possible cationic
doi:10.24688/jfia.23.2_107
fatcat:nwtcb4lixvdevpvabjjm56z5om