title: Electrometric ammonia determination in plasma.
mesh_terms: D000641:Ammonia / Q000097:blood*; D004058:Diffusion; D004566:Electrodes; D005069:Evaluation Studies as Topic; D005260:Female; D006493:Heparin; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008722:Methods; D013997:Time Factors
chemical_list: D000641:Ammonia; D006493:Heparin