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Ion-selective electrodes of the screen printed carbon paste type for the determination of cetylpyridinium chloride, cetyltrimethylammonium bromide, dodecyltrimethylammonium bromide, didodecyldimethylammonium bromide and sodium dodecylsulfate. SPCPEs can successfully be applied in the potentiometric titration of surfactants using the procedures adopted in the application of the ordinary CPE, PVC, CWE, CGE and commercially available electrodes. However, SPCPEs has several advantages of mass production, reproducibility of the preparation process, very simple, sheep and quick preparation process...