| 摘要 |
A test device, including: a compartment defining an environment and comprising a specimen region; an indicator medium disposed in the compartment; a separation medium disposed in the compartment between the specimen region and the indicator medium; an active ingredient adjacent the specimen region; and a color indicator disposed on the indicator medium and responsive a chemical compound produced by a reaction involving the active ingredient by changing from a first color to a second color. The separation medium is configured to permit fluid communication directly between the environment and a side of the indicator medium proximate the separation medium when the separation medium and the indicator medium abut each other. |
