{"in": [], "out": ""}
{"in": [], "out": ""}
{"in": [], "out": ""}
{"in": [""], "out": "intracellular pH"}
{"in": ["liquid growth medium"], "out": ""}
{"in": [], "out": "F488"}
{"in": ["F488", "pH buffer solutions", "the buffer solution"], "out": "the calibration curve"}
{"in": [], "out": ""}
{"in": [], "out": "F405-to-[F488] ratio"}
{"in": [], "out": ""}
{"in": ["the calibration curve"], "out": "in situ titration"}
{"in": [], "out": ""}