{'fraction_non_alphanumeric': 0.02302158273381295, 'fraction_numerical': 0.008633093525179856, 'mean_word_length': 6.03030303030303, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
[Guidelines for radiation protection in medicine--radiopharmaceutical quality control. German Society of Nuclear Medicine].

For the first time the revision of the "Guideline for radiation protection in medicine" defines extensive quality control procedures for radiopharmaceuticals. The principles of the 99Mo/99mTc-generator, the preparation of 99mTc-radiopharmaceuticals and the origin of the most frequent radiochemical impurities are illustrated. An introduction into the theory of thin layer chromatography is combined with a listing of radiochromatographic systems. This enables the determination of the radiochemical purity of the most important radiopharmaceuticals in clinical routine.