[Some additions to Conway's method].
D000641:Ammonia / Q000652:urine*; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation; D004058:Diffusion; D008722:Methods; D010783:Photometry / Q000295:instrumentation*; D012996:Solutions / Q000032:analysis
D012996:Solutions; D000641:Ammonia
Nakotorye dopolneniia k metodu Konveia.