Characterization of submicrometer emulsions using sedimentation field-flow fractionation with power field programming
1994
Sedimentation field-flow fractionation (SdFFF), operated with power-based field programming, was shown to be effective in the characterization of submicrometer fat emulsions. Field programming, in which the decrease of field strength with time gradually increases the average velocity of the sample components, extends the capabilities of sedimentation field-flow fractionation in handing polydisperse samples. Submicrometer fat emulsions were analyzed by three different rates of field decay and two different initial field strengths, using various stop-flow times. Identical size distribution profiles were obtained under all circumstances, using the appropriate stop-flow times
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