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Journal of Nuclear Medicine Technology

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Nuclear Pharmacy

Rapid Miniaturized Chromatography for Technetium-99m-Tetrofosmin

B.F. McKay, A.M. Zimmer and S.M. Spies
Journal of Nuclear Medicine Technology March 1997, 25 (1) 52-54;
B.F. McKay
Department of Nuclear Medicine, Northwestern University Medical Center, Chicago, Illinois
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A.M. Zimmer
Department of Nuclear Medicine, Northwestern University Medical Center, Chicago, Illinois
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S.M. Spies
Department of Nuclear Medicine, Northwestern University Medical Center, Chicago, Illinois
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Abstract

The purpose of this investigation was to develop and evaluate a new and rapid miniaturized chromatography system that would accurately assess the radiochemical purity of 99mTc-tetrofosmin without the problems of solvent ratios and time requirements associated with the manufacturer’s recommended procedure.

Methods: The migration of the radiochemical components of 99mTc- tetrofosmin was evaluated using various chromatography media with ethyl acetate as the solvent. After optimization of the miniaturized system, radiochemical purity assessments were performed simultaneously on 23 99mTc-tetrofosmin preparations using both recommended and miniaturized chromatography systems.

Results: A miniaturized chromatography system consisting of Whatman 1 chromatography paper with ethyl acetate was developed for the radiochemical purity assessment of 99mTc-tetrofosmin. Radiochemical purity results for 99mTc-tetrofosmin preparations were similar with both recommended and miniaturized chromatography methods, with a mean difference of 1.5% ± 1.2% (s.d.). Differences in radiochemical purity results between the two chromatography systems were less than 2% (20 of 23 evaluations) with most preparations.

Conclusion: Radiochemical purity results for 99mTc-tetrofosmin preparations were similar with both the manufacturer’s recommended chromatography and miniaturized chromatography systems. The miniaturized chromatography system is easier to use, and the time required to perform radiochemical purity assessments is substantially reduced.

  • technetium-99m-tetrofosmin
  • radiochemical purity testing
  • miniaturized chromatography system
  • quality control
  • chromatography methods
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Journal of Nuclear Medicine Technology: 25 (1)
Journal of Nuclear Medicine Technology
Vol. 25, Issue 1
March 1, 1997
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Rapid Miniaturized Chromatography for Technetium-99m-Tetrofosmin
B.F. McKay, A.M. Zimmer, S.M. Spies
Journal of Nuclear Medicine Technology Mar 1997, 25 (1) 52-54;

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Rapid Miniaturized Chromatography for Technetium-99m-Tetrofosmin
B.F. McKay, A.M. Zimmer, S.M. Spies
Journal of Nuclear Medicine Technology Mar 1997, 25 (1) 52-54;
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  • Miniaturized Radiochemical Purity Testing for 99mTc-HMPAO, 99mTc-HMDP, and 99mTc-Tetrofosmin
  • An Alternative Method for Determining the Radiochemical Purity of 99mTc-Tetrofosmin
  • A Rapid Radiochemical Purity Testing Method for 99mTc-Tetrofosmin
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Keywords

  • technetium-99m-tetrofosmin
  • radiochemical purity testing
  • miniaturized chromatography system
  • quality control
  • chromatography methods
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