Clay mineralogy, strontium and neodymium isotope ratios in the sediments of two High Arctic catchments (Svalbard) Clay mineralogy, strontium and neodymium isotope ratios in the sediments of two High Arctic...The identification of sediment sources to the ocean is a prerequisite to using marine sediment cores to extract information on past climate and ocean circulation.
(d) Rack containing 6 quartz vessels being prepared for cleaning.
7 high purity quartz digestion vessels can be loaded into the HPA for digestion at a time. This lab is used for flux fusions, HPA digestions, oven digestions, and torch work associated with the sealing of Carius tubes. An oxygen-propane torch is used for sealing Pyrex tubes, and an oxygen-hydrogen torch is used to seal quartz tubes.
The bench-top size of the HPA (b) and simple operational controls make it ideal for processing precious materials, where time and simple methods are of the essence.
(c) Wrapping tool for closing the optically perfect caps to high-purity 50m L capacity quartz digestion vessels prior to loading in the HPA.
The relative intensities of the different isotopes of a given element are quantified using either the multiple Faraday cups or multiple electron multipliers. Each contains class-10 vented laminar flow hoods, chemical fume hoods and multiple work stations (with fume extraction).