Plastic and rubber materials are commonly encountered in medical devices and packaging/delivery systems for drug products. Characterizing the extractables from these materials is an important part of determining that they are suitable for use. In this study, five materials representative of plastics and rubbers used in packaging and medical devices were extracted by several means, and the extracts were analytically characterized to establish each material's profile of extracted organic compounds and trace element/metals. This information was utilized to make generalizations about the appropriateness of the test methods and the appropriate use of the test materials.

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Co-production of renewable hydrogen and electricity using high temperature fuel cells offers a potentially attractive option for the hydrogen infrastructure. The multiple co-products help to reduce the cost of delivered hydrogen. Operation of high temperature fuel cell (DFC ® ) systems on renewable fuels, such as digester gas, has been demonstrated at over a dozen sites. Electrochemical Hydrogen Separation (EHS) systems, currently under development at FCE, can separate the hydrogen produced in the DFC ® system with relatively low energy consumption and do not require pressurization. The separation process is virtually emission-free. A sub-scale EHS stack has been operated for more than 10,000 hours. Hydrogen separation efficiencies of up to 90% have been demonstrated. Technology development status and the potential benefits of this co-production system for dual use -civilian as well as military use -are discussed.

(J. Brouwer).A v a i l a b l e a t w w w . s c i e n c e d i r e c t . c o m j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / h e