Trace Impurities In Samples Research Articles

Challenges of Green Transition in Polymer Production: Applications in Zero Energy Innovations and Hydrogen Storage.

The green transition in the sustainable production and processing of polymers poses multifaceted challenges that demand integral comprehensive solutions. Specific problems of presences of toxic trace elements are often missed and this prevents shifting towards eco-friendly alternatives. Therefore, substantial research and the development of novel approaches is needed to discover and implement innovative, sustainable production materials and methods. This paper is focused on the most vital problems of the green transition from the aspect of establishing universally accepted criteria for the characterization and classification of eco-friendly polymers, which is essential to ensuring transparency and trust among consumers. Additionally, the recycling infrastructure needs substantial improvement to manage the end-of-life stage of polymer products effectively. Moreover, the lack of standardized regulations and certifications for sustainable polymers adds to the complexity of this problem. In this paper we propose solutions from the aspect of standardization protocols for the characterization of polymers foreseen as materials that should be used in Zero Energy Innovations in Hydrogen Storage. The role model standards originate from eco-labeling procedures for materials that come into direct or prolonged contact with human skin, and that are monitored by different methods and testing procedures. In conclusion, the challenges of transitioning to green practices in polymer production and processing demands a concerted effort from experts in the field which need to emphasize the problems of the analysis of toxic ultra trace and trace impurities in samples that will be used in hydrogen storage, as trace impurities may cause terrific obstacles due to their decreasing the safety of materials. Overcoming these obstacles requires the development and application of current state-of-the-art methodologies for monitoring the quality of polymers during their recycling, processing, and using, as well as the development of other technological innovations, financial initiatives, and a collective commitment to fostering a sustainable and environmentally responsible future for the polymer industry and innovations in the field of zero energy applications.

Determination of trace impurities in sodium coolant from a Fast Breeder Reactor by inductively coupled plasma atomic-emission spectrometry

Trace impurities in samples of the liquid sodium coolant from the Dounreay Fast Reactor are determined by inductively coupled plasma (ICP) atomic-emission spectrometry of vacuum distillation residues. A 72-channel vacuum spectrometer with a 1-kW argon plasma source, fed by a coaxial capillary nebuliser, simultaneously measures 59 elements with a precision varying from <1% at concentrations 20 times the detection limit to 30% at detection levels. The ICP torch box is enclosed in a fume-cupboard fitted with a filtered extract system to allow safe handing of the radioactive solutions. Comparisons of some results have been made with spark-source mass spectrometry, d.c. arc emission spectrography, neutron-activation analysis and atomic-absorption spectrometry.