title: Characterization and validation of the gamma-scintigraphic method for determining liquid holdup in foam.
abstract: Characterization and validation protocols for quantifying liquid content in a protein foam by gamma-scintigraphy were developed. Spatial resolution, count resolution and volume resolution values were measured to determine the analytical limitations of the apparatus. Scintigraphic measures of volume, in both liquid and dispersed media, correlated well with physical measures. Ionic interaction between [99mTc]pertechnetate and bovine serum albumin was undetectable by gel permeation. These results confirm that gamma-scintigraphy can be used to quantify liquid holdup in protein foams of pharmaceutical interest.
authors.affiliation: University of Kentucky, College of Pharmacy, Lexington 40536, USA.
authors.forename: Scott D
authors.initials: SD
authors.lastname: Webb
authors.forename: Richard C
authors.initials: RC
authors.lastname: Page
authors.forename: Michael
authors.initials: M
authors.lastname: Jay
authors.forename: Paul M
authors.initials: PM
authors.lastname: Bummer