Flame spectrophotometry. 1. Standardization of the instrument.
D000838:Anions; D007477:Ions; D011188:Potassium / Q000032:analysis*; D012964:Sodium / Q000032:analysis*; D012982:Sodium, Dietary; D013053:Spectrophotometry / Q000295:instrumentation*
D000838:Anions; D007477:Ions; D012982:Sodium, Dietary; D012964:Sodium; D011188:Potassium
POTASSIUM/determination; SODIUM/determination; SPECTROPHOTOMETERS