title: A simple self-contained delivery-absorption cell system for microphotometric titrations.
mesh_terms: D008832:Microchemistry / Q000295:instrumentation* / Q000379:methods; D010783:Photometry / Q000295:instrumentation* / Q000379:methods; D013910:Thorium / Q000032:analysis; D015032:Zinc / Q000032:analysis
chemical_list: D013910:Thorium; D015032:Zinc