Neumann MG, Schmitt CC, Prieto KR, Goi BE. The photophysical determination of the minimum hydrotrope concentration of aromatic hydrotropes.
J Colloid Interface Sci 2007;
315:810-3. [PMID:
17681515 DOI:
10.1016/j.jcis.2007.07.020]
[Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2007] [Revised: 06/22/2007] [Accepted: 07/09/2007] [Indexed: 11/30/2022]
Abstract
A method based on the aggregate to monomol emission ratio, I(aggr)/I(monomol), was used to determine the minimal hydrotropic concentration (MHC) of aromatic hydrotropes. The main advantage of this method is that it does not require the use of probes or other additives, which might disrupt the aggregation process. Also, it relies on spectrophotometric measurements, which are more sensitive and less arduous than others, like conductivity, light scattering and surface tension.
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