Determination of cyanuric acid in swimming pool water by differential pulse polarography |
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| Authors: | J. Struys P.M. Wolfs |
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| Affiliation: | Laboratory for Inorganic Chemistry, National Institute of Public Health and Environmental Hygiene, P.O. Box 1, 3720 BA Bilthoven The Netherlands |
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| Abstract: | A reliable differential pulse polarographic method is described for the determination of cyanuric acid (1,3,5-triazine-2,4,6-triol) in pool water. Cyanuric acid in the range 10?5–10?3 M is determined by means of the peak at ca. –60 mV (vs. Ag/AgCl/3 M NAcl). The high sensitivity of the polarographic technique allows ten-fold dilution of samples, thus avoiding matrix effects. It it shown that the peak can be attributed to formation of insoluble mercury(I) cyanurate, Hg2(HC3N3O3), at the mercury electrode. |
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