@article{2981602, title = "Migration study of 1,3-butadiene in eye-drop solutions", author = "Pistos, C. and Karampela, S. and Vardakou, I. and Papoutsis, I. and Spiliopoulou, C. and Athanaselis, S.", journal = "Drug and Chemical Toxicology", year = "2012", volume = "35", number = "3", pages = "293-299", issn = "0148-0545, 1525-6014", doi = "10.3109/01480545.2011.607826", keywords = "1,3 butadiene; eye drops, article; calibration; gas chromatography; headspace gas chromatography flame ionization; temperature dependence; toxicity; validation process, Butadienes; Chemistry Techniques, Analytical; Drug Contamination; Drug Packaging; Flame Ionization; Ophthalmic Solutions; Sensitivity and Specificity; Temperature; Time Factors; Toxicity Tests", abstract = "The potential deleterious effects of extractables/leachables in pharmaceutical products led the USP, EP, and JP to require extractable and toxicity testing of container/closure systems. To that, a headspace gas chromatography flame ionization detection method was developed and validated for the determination of 1,3-butadiene (1,3-BD) as a potential extractable residue from a pharmaceutical container/closure system into eye-drop solutions. A migration study was further applied in eight eye-drop solutions (currently marketed products) after short- and long-term exposure of these products at various temperatures. This method allows the establishment of safety-qualification thresholds for 1,3-BD being capable of monitoring eye-drop solution products for this residue. © 2012 Informa Healthcare USA, Inc." }