Ion exchange materials for use in a 213 Bi generator

Details Ion exchange materials for use in a 213 Bi generator Ion exchange materials for use in a 213 Bi generator

2007-05-01

2007-05-01

Vanoy, Timothy C. (Department: 1754)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

C423S006000, C423S249000, C423S305000, C423SDIG018, C252S184000

Reexamination Certificate

active

10354929

ABSTRACT:
A bismuth-213 generator comprising an insoluble composition having the general formula Zr(Phosponate)x(HPO4)2−x.nH2O, wherein x is between 0 and 2; and n is the number of waters of hydration; and wherein cations of radioactive isotopes selected from radium, actinium and combinations thereof are immobilized on the composition. The value of x may be between about 0.2 and about 1. The phosphonate may be n-phosphonomethyl-miniodiacetic acid (PMIDA), wherein x may be between about 0.1 and about 1.9. The phosphonate may be one or more phosphonate having the formula:in-line-formulae description="In-line Formulae" end="lead"?H2O3P—(CH2)a—N—((CH2)bCO2H)—((CH2)cCO2H),in-line-formulae description="In-line Formulae" end="tail"?wherein a, b, and c are numbers from 1 to 3 that may or may not be equal. The value of x may also be between about 0.1 and 1.9.

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