alexa Radiochemical purity of routinely prepared 99Tcm radiopharmaceuticals: a retrospective study.
Chemical Engineering

Chemical Engineering

Journal of Chromatography & Separation Techniques

Author(s): Decristoforo C, Siller R, Chen F, Riccabona G

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Abstract Radiochemical purity is an important quality parameter for radiopharmaceuticals. In this study, the radiochemical purity of 2090 samples out of 7000 routine preparations of 20 different 99Tcm radiopharmaceuticals was tested using standard methods over a period of more than 7 years. The mean radiochemical purity was 96.92\% (standard deviation = 6.71\%). Seventy-four preparations failed to meet radiochemical purity limits; that is, 3.54\% of all preparations tested or 1.06\% of all preparations in the observation period. The reasons for substandard preparations were mainly related to laboratory-specific conditions. The introduction of a dedicated quality control protocol allowed the elimination of many sources of labelling failures and could reduce the number of administered preparations with an insufficient radiochemical purity. We stress the need for quality control in the preparation of radiopharmaceuticals and provide original radiochemical purity values of routinely prepared 99Tcm radiopharmaceuticals.
This article was published in Nucl Med Commun and referenced in Journal of Chromatography & Separation Techniques

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