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    Determination of coupled solvent mass in quartz crystal microbalance measurements using deuterated solvents

    Year: 2003

    Journal: Journal of Colloid and Interface Science Vol 262, issue 1, june 2003, p 126-129, 20100827

    Authors: Craig V.S.J., Plunkett M.

    Last authors: Mark Plunkett

    Organizations: Department of Applied Mathematics, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia and The Institute for Surface Chemistry, P.O. Box 5607, SE-11486, Stockholm, Sweden

    Country: Sweden

    A simple method is described for determining of the contribution of hydrodynamically coupled solvent to the adsorbed film mass determined in a quartz crystal microbalance (QCM) when operated in liquid. The method requires no additional apparatus and utilizes the change in QCM resonant frequency response between measurements made in nondeuterated and deuterated solvents. The mass of coupled water in a polymer film has been determined and is found to agree with that determined by XPS analysis of the dried.