Determination of ultratrace levels of fluorine in water and urine samples by a gas chromatographic/atmospheric pressure helium microwave induced plasma emission spectrometric system.
D002849:Chromatography, Gas / Q000379:methods; D005461:Fluorine / Q000032:analysis / Q000652:urine*; D006801:Humans; D012016:Reference Values; D012623:Seawater / Q000032:analysis; D014867:Water / Q000032:analysis*
D014867:Water; D005461:Fluorine