Concentration of 99mTcO4-/188ReO4- by a single, compact, anion exchange cartridge.
BACKGROUND
This paper describes a simple and inexpensive post-elution anion exchange cartridge system for the concentration of 99mTcO4-/188ReO4-.


RESULTS
The system is based on generator elution with a mixture of 0.7 M acetic acid and 0.0225 M sodium chloride instead of physiological saline to provide high specific volume solutions of 99mTc and 188Re from 99Mo-99mTc and 188W-188Re generators, respectively. The passage of the bolus through an amine-type (Accell Plus QMA Sep-Pak) anion exchange cartridge results in trapping of the microscopic levels of the pertechnetate or perrhenate. Subsequent elution of the anion exchange cartridge with 2 ml of saline then provides high specific volume solutions of pertechnetate or perrhenate.


CONCLUSIONS
This new approach works effectively to obtain concentrated solutions of 99mTcO4- and 188ReO4- from commercially available alumina based Mo-Tc and W-Re generators, respectively.
Isotope Production Division, Pakistan Institute of Nuclear Science & Technology, P.O. Nilore, Islamabad, Pakistan. mushtaqa@pinstech.org.pk
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Mushtaq
D000837:Anion Exchange Resins / Q000737:chemistry*; D002852:Chromatography, Ion Exchange / Q000379:methods*; D007553:Isotope Labeling / Q000379:methods*; D010087:Oxides / Q000737:chemistry / Q000302:isolation & purification; D012211:Rhenium / Q000737:chemistry* / Q000302:isolation & purification*; D017556:Technetium Compounds / Q000737:chemistry* / Q000302:isolation & purification*
D000837:Anion Exchange Resins; D010087:Oxides; D017556:Technetium Compounds; C015428:perrhenate; D012211:Rhenium