Table 2. Solubility of Ingested Americium-241 in In vitro Trial-6 11/05/74 Bovine Gastrointestinal Fluids Trial-7 01/19/75 Trial-8 01/21/75 0.312% 0.08% 1.1% 0.44% Trial-9* 01/29/75 Trial-10 03/12/75 Trial-11 05/29/75 1.2% 0.11% 0.062 0.75% 1.4% 2.3% 0.98% Abomasum, End pH 3 Americium-241 241 am/239pu 0.066% 1.1 1.2 0.66 6.1 1.0 1.2 Duodenum,pH 4.5 Amer icium-241 SCT 24 Tam/?39Pu 0.43% 1.7 1.6 3.0 1.2 1.5 0.102 0.80 Jejunum, pH 6 Bile & Enzymes, 2 hrs Amer icium-241 24 Lam/?39pu 6,5** 10.2 0.897 0.49 0.13% 0.18 0.88 1.2% 63.7% 0.57 0.23% 0.24 Lower Intestine, pH 7.5 Bile & Enzymes, 2 hrs Amer icium-241 24 1lam/239Pu 0.58% 0.77 0.43% 0.23 *Outer enclosure. *xAnomalous: Not considered in interpretation of results, 1.6 0.99 3.3% 2.5 0.54% 0.80