title: Intracellular pH measurement techniques: their advantages and limitations.
mesh_terms: D000818:Animals; D001826:Body Fluids / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007424:Intracellular Fluid / Q000378:metabolism*; D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D008839:Microelectrodes; D013050:Spectrometry, Fluorescence