The flame photometer.
D004864:Equipment and Supplies; D007477:Ions; D010783:Photometry; D011188:Potassium / Q000032:analysis*; D012964:Sodium / Q000032:analysis*; D012982:Sodium, Dietary; D013057:Spectrum Analysis
D007477:Ions; D012982:Sodium, Dietary; D012964:Sodium; D011188:Potassium
APPARATUS AND INSTRUMENTS; POTASSIUM/determination; SODIUM/determination