BMTA Newsletter BMTA Newsletter - Winter 2019/20 | Page 12 Once a sample has been taken using the µ-CTE, the sorbent tube is placed in an automated TD unit. The VOCs emitted from the sample are introduced to a GC–MS for separation and analysis. Chromatographic data is generated to identify the chemicals emitted (figure 5). Fig. 5 – Chromatogram to show the emission profile of a medical device. µ-CTE technology in conjunction with TD–GC–MS analysis enables the testing of VOC emissions from raw materials through to the final devices. The generation of a comprehensive chemical profile can result in the detection of a wide range of volatile and semi-volatile organic compounds emitted by a sample. This methodology can be used to obtain useful emissions data on medical devices to comply with regulations and to develop new low-VOC-emitting materials, thus protecting the patient and future- proofing the product.