Validation of the In Vitro Gastrointestinal (IVG) Method to Estimate Relative Bioavailable Lead in Contaminated Soils
J. L. Schrodera,
N. T. Basta*,b,
S. W. Casteelc,
T. J. Evansc,
M. E. Paytond and
J. Sia
a Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK 74078
b School of Natural Resources, The Ohio State University, Columbus, OH 43210
c Veterinary Medicine Diagnostic Laboratory, University of Missouri-Columbia, Columbia, MO 65205
d Department of Statistics, Oklahoma State University, Stillwater, OK 74078

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Fig. 1. Linear regression of in vitro bioaccessible Pb extracted by (A) gastric extraction step with dough; (B) intestinal extraction step with dough; (C) gastric extraction step without dough; or (D) intestinal extraction step without dough vs. relative bioavailable Pb, in vivo estimated with blood data. *Significant at the 0.001 probability level.
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Copyright © 2004 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.