Skip to main content
. 2017 Jun 9;7:3174. doi: 10.1038/s41598-017-03634-8

Figure 4.

Figure 4

Monitoring the Fe2+ and Fe3+ combination with Protoporphyrin IX. (ac) Dynamic reaction process between Fe2+ and Protoporphyrin. The X-, Y- and Z- axis are wavelength (nm), reaction time (s) and fluorescence intensity (a.u.), respectivity; (df) Dynamic reaction process between Fe3+ and Protoporphyrin.