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. 2015 Aug 18;2(5):054301. doi: 10.1063/1.4928715

FIG. 7.

FIG. 7.

N K-edge absorption of aqueous solutions of NH4+, showing a linear concentration dependence in the absorption magnitude of the main edge feature. The spectra are the result of 3 scans (0.25 M and 0.70 M), or 1 scan (0.50 M and 1.00 M), where 1 scan typically lasted 10 min.