title: [Study of fluoride contamination in the natural waters of La Rioja, using a lanthanum fluoride membrane electrode].
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D003217:Conductometry / Q000295:instrumentation; D004566:Electrodes; D005461:Fluorine / Q000032:analysis*; D005504:Food Analysis; D005618:Fresh Water / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D013030:Spain; D014867:Water / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D014873:Water Pollutants; D014874:Water Pollutants, Chemical; D014867:Water; D005461:Fluorine
vernacular_title: Estudio de la contaminación de fluoruro en aguas naturales de La Rioja, mediante electrodo de membrana de fluoruro de lantano.