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Other Applications
Besides these applications shown here, we have evaluated
papers used for color printer, human hairs, potato and so on. In case of the paper,
acid amount on the surface was know to be important for the color ink to express
its appropriate color. In case of human hair, residual alkali was detected when
the dyed hair sample was tested. Potato can also be regarded as solid sample.
Upon reagent stimulation on the top of the cubed potato sample, the pH change
was observed on the opposite surface. |
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![[genre_e]](../image/t_title.jpg){kind=small}
