Skip to main content
. 2014 Jan 23;9(1):e86606. doi: 10.1371/journal.pone.0086606

Figure 5. Effects of AA on the absorption spectra of HGA and alkaptonuric urine incubated with NaOH.

Figure 5

1% HGA solutions or the urine samples from the patients with alkaptonuria (Case #1 and Case #2); then, 1 M NaOH was added to each sample, followed by incubation of the samples at room temperature for 1 min.