HOSPITAL OVERALL DISINFECTION SOLUTION SERVICE PROVIDER

Study on test paper for rapid detection of concentration of o-phthalaldehyde disinfectant


Release time:

2022-10-25

Abstract: Objective To prepare a rapid test strip for detecting the concentration of ortho-phthalaldehyde (OPA) disinfectant. method adopted on Compared with the color of the test paper, the various factors affecting the color reaction of the test paper are studied. Results Na2 SO3, glycine, The concentration of KH2PO4 and methylene blue were 8, 80, 40 and 0. 04 g /L respectively, and the detection time was 2 min, the effect was the best. The addition of KH2PO4 can greatly Improve the color rate; the test paper dyed blue substrate is more conducive to the identification of color. Conclusion The prepared test paper has a good detection effect on unilateral OPA products. and test paper stability, good reproducibility. The method is simple, fast and feasible.
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