[Flame photometry].
D002118:Calcium / Q000032:analysis; D008670:Metals / Q000032:analysis*; D008832:Microchemistry; D010783:Photometry; D011188:Potassium / Q000032:analysis; D012964:Sodium / Q000032:analysis
D008670:Metals; D012964:Sodium; D011188:Potassium; D002118:Calcium