Biomedical Engineering Reference
In-Depth Information
(a)
(b)
Figure 4.24
Photographs (a) and UV-Vis absorption spectra (b) of
BMIMBr in liquid prepared on water (lower) and without any solvent
(upper). Reprinted from
, Shen, Y., Zhang, Y., Han, D.,
Wang, Z., Kuehner, D., and Niu, L., Preparation of colorless ionic liquids
“on water” for spectroscopy, 805-808, copyright 2009, with permission
from Elsevier.
Talanta
,
46
Although colorless ILs are most desirable, as prepared ILs
frequently bear color, despite appearing pure by most analytical
techniques, except for UV-vis spectrum. Thus, it leads to some
uncertainties
and
limits
for
the
fundamental
research
and
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