we have used the fluorescence intensity ratio ( excitation 490/439 ; emission 520-550 nm ) of 2',7'-bis ( carboxyethyl ) -5 ( 6 ) -carboxyfluorescein ( bcecf ) to measure intracellular ph ( phi ) in single oxyntic cells ( ocs ) within intact gastric glands isolated from rabbits .
C0030559
oxyntic cells
C0017130
gastric glands