Structural properties of aqueous solutions of D-fructose
The main difficulty with structure determination of 1H-containing ('protonated') liquids is the huge incoherent inelastic scattering that arises due to the exceptionally high level of spin-incoherency of the proton (1H). As a result, more than 90 % of the measured signal (using non-polarized neutron beams) from pure H2O, and more than cca. 70 % from pure C6H12O6 (fructose) is useless ('background') from the structural point of view. Spin-incoherence, however, can be bypassed if the neutron beam is polarized. We have recently shown that using the D3 instrument, it is possible to measure accurate (coherent) static structure factors of water samples, containing a varying proportions of 1H, over a wide Q-range. The incoherent 'background' could also be determined precisely. Here we propose an analogue experiment for investigating the structure of an aqueous solution, as a function of concentration, of vital importance: that of D-fructose. In order to complete the coverage of the scattering vector range, we wish to complement the D3 experiment with measurements using cold polarized neutrons of the D7 instrument.
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PUSZTAI Laszlo; CUELLO Gabriel; POTHOCZKI Szilvia; STUNAULT Anne; TEMLEITNER Laszlo and WILDES Andrew. (2018). Structural properties of aqueous solutions of D-fructose. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-02-584
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