title: Determination of picogram amounts of ATP using the luciferin-luciferase enzyme system.
mesh_terms: D000255:Adenosine Triphosphate / Q000032:analysis*; D049454:Firefly Luciferin; D008156:Luciferases; D008163:Luminescent Measurements; D008722:Methods; D008832:Microchemistry; D013053:Spectrophotometry
chemical_list: D049454:Firefly Luciferin; D000255:Adenosine Triphosphate; D008156:Luciferases