Extraction of plasticizers: An entire and reproducible quantification method for historical cellulose acetate material

Abstract Plasticizers from historical artefacts made of cellulose acetate were extracted and quantified. In compare to common procedures the presented method led to an entire and reproducible extraction which can even be performed in a much shorter time. The success of the improved procedure is based on the use of ultrasonic sound, methanol as solvent and multiple extraction steps for a complete removal of the plasticizers. The procedure was developed for small amounts of different types of products made from cellulose acetate.