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. Author manuscript; available in PMC: 2008 Nov 19.
Published in final edited form as: Langmuir. 2008 Jul 11;24(16):8660–8666. doi: 10.1021/la801254b

Figure 4.

Figure 4

UV absorption spectra of DTC solutions, before and after a 6-hour exposure to air (solid and dashed curves, respectively). (a) Bis-HE-DTC (pH 6); (b) HE-DTC (pH 6); (c) ME-DTC (pH 6 and 10).