title: A rapid and ultrasensitive method to measure Ca++ movements across biological membranes.
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism; D000818:Animals; D002118:Calcium / Q000378:metabolism*; D004492:Edetic Acid; D066298:In Vitro Techniques; D008274:Magnesium / Q000378:metabolism; D008832:Microchemistry; D009132:Muscles / Q000378:metabolism; D011199:Potentiometry; D011817:Rabbits; D012519:Sarcoplasmic Reticulum / Q000378:metabolism*
chemical_list: D000255:Adenosine Triphosphate; D004492:Edetic Acid; D008274:Magnesium; D002118:Calcium