Development and Successful Validation of Simple and Fast TLC Spot Tests for Determination of Kryptofix® 2.2.2 and Tetrabutylammonium in 18F-Labeled Radiopharmaceuticals

Pharmaceuticals

Matthias Kuntzsch¹  Denis Lamparter¹  Nils Brüggener¹  Marco Müller²  Gabriele J. Kienzle¹ 

[1] Department of Preclinical Imaging and Radiopharmacy, Eberhard Karls University Tübingen, Röntgenweg 15, Tübingen D-72076, Germany; E-Mails:;Department of Radiochemistry, ABX GmbH, Heinrich-Gläser-Straße 10, Radeberg D-01454, Germany; E-Mail:

关键词: Kryptofix^® 2.2.2;    tetrabutylammonium;    fluorine-18;    quality control;    thin layer chromatography (TLC) spot test;   

DOI  :  10.3390/ph7050621

来源: mdpi

【 摘 要 】

Kryptofix^® 2.2.2 (Kry) or tetrabutylammonium (TBA) are commonly used as phase transfer catalysts in ¹⁸F-radiopharmaceutical productions for positron emission tomography (PET). Due to their toxicity, quality control has to be performed before administration of the tracer to assure that limit concentration of residual reagent is not reached. Here, we describe the successful development and pharmaceutical validation (for specificity, accuracy and detection limit) of a simplified color spot test on TLC plates. We were able to prove its applicability as a general, time and resources saving, easy to handle and reliable method in daily routine analyzing ¹⁸F-tracer formulations for Kry (in [¹⁸F]FDG or [¹⁸F]FECh) or TBA contaminations (in [¹⁸F]FLT) with special regard to complex matrix compositions.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.