... , etc.Application:This instrument is used for analyzing & measuring the content & concentration of elements (K, Na, Li, Ca, Ba). It can ... detect three kinds of elements, show three kinds of element content simultaneous.² Operates on propane, butane or liquefied petroleum gas.² Standard ... -AP1500 Flame Photometer/Spectrophotometer (With Air-compress, PC software, can test K,Na,Li,Ca,Ba)