Abstract: Tetrabromobisphenol A (TBBPA) is a kind of brominated flame retardants widely used in the world. A sensitive and selective competitive indirect biotin-stretavidin amplified emzyme-linked immunosorbent assay (BA-ELISA) for the detection of TBBPA was developed. The limit of detection (IC10) and the inhibition half-maximum concentration (IC50) were 0.027ng/mL and 0.58ng/mL, respectively. Cross-reactivity values of the BA-ELISA with a set of analogues revealed a high selective. Finally, the assay was applied to the analysis of TBBPA in electronic waste samples. The results were agreed well with those of liquid chromatography method, proved that the established immunoassay were accurate and receivable. It is believed that this BA-ELISA method was suitable for rapid and sensitive screening of TBBPA in environmental monitoring.

• Publication Date: 29-Apr-2018
• DOI: 10.15224/978-1-63248-148-1-57
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Abstract: The continuous rotary extrusion process is a complex metal forming operation, and there is still lack of knowledge regarding the mechanics of the process. Because of this, we decided to use FEM-modelling to characterize and study the thermo-mechanical conditions in the process. Emphasize in our work is on the nature of metal flow and the thermal conditions in the early stages of the process, when the feed-rod material fills up the die cavity and forms the plastic zone. In addition, we investigated when steady state conditions are reached, with respect to the metal flow and the temperature field in the process.

• Publication Date: 04-Feb-2018
• DOI: 10.15224/978-1-63248-147-4-19
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