Figure 8
From: Analysis of free chlorine in aqueous solution at very low concentration with lateral flow tests
(a) Images of flow tests using a PET 6613 H substrate and a 2 mM SA ink with cellulose acetate content of 0 to 5% (m/v) printed 4x at 0.5 µl/cm. (b) Images of flow tests using a PET 6613 H substrate and a SA ink of 2 to 10 mM with 3% (m/v) cellulose acetate content printed 1x at 2 µl/cm. A solution with 5 ppm free chlorine flowed through all the tests.
