title: A pH-glass electrode for nanolitre biological samples.
mesh_terms: D001639:Bicarbonates / Q000032:analysis; D001826:Body Fluids / Q000032:analysis; D002021:Buffers; D004566:Electrodes / Q000295:instrumentation*; D005898:Glass; D006863:Hydrogen-Ion Concentration; D008722:Methods
chemical_list: D001639:Bicarbonates; D002021:Buffers