The addition of co-solutes to aid the separation of signals from molecules of similar size in DOSY experiments – matrix-assisted DOSY – is a potentially powerful technique for mixture analysis. The additional signals introduced by a co-solute can however greatly complicate analysis. By suitable choice of sample conditions, the NMR peaks of a surfactant matrix can be suppressed, allowing the clear resolution of molecular species according to chemistry and structure, without extraneous interference.
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Funding: EPSRC (EP/E05899X/1 and EP/H024336/1); Givaudan Flavors Division; Mexican Scientic and Technology Council (CONACyT); and SciencewithoutBorders–Brazil(CNPqreferencenumber233163/2014-0
Electronic supplementary information (ESI) available. See DOI: 10.1039/c6ra26144b