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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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