title: A convenient bioassay for detecting nanomolar concentrations of tetrodotoxin.
mesh_terms: D000200:Action Potentials; D000818:Animals; D001001:Anura; D001681:Biological Assay; D066298:In Vitro Techniques; D008722:Methods; D011894:Rana pipiens; D012584:Sciatic Nerve / Q000187:drug effects; D013395:Sucrose; D013779:Tetrodotoxin / Q000032:analysis*; D014562:Caudata / Q000032:analysis
chemical_list: D013779:Tetrodotoxin; D013395:Sucrose