Figure 3 | Scientific Reports

Figure 3

From: High-resolution Imaging of pH in Alkaline Sediments and Water Based on a New Rapid Response Fluorescent Planar Optode

Figure 3

pH distibution pattern across the SWI in the alkaline environment.

Side view (A) 2D distibution of pH across the SWI in panel (A) as elucidated by planar optode (B); Comparation of pH profiles measured by the optode planar and miroelectrode. The extracted vertical profile indicated by the yellow dash line acrossing the SWI in panel (A), as well as profile (1 mm behind the white line) measured with microelectrode (C).

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