The isolation and detection of atomic resonance lines.

摘要: Since the spectrum of resonance radiation from an atomic vapor consists only those spectral lines that are absorbed by vapor, lamps can serve as monochromators for isolating these lines. The is produced cathodic sputtering in a rare gas discharge or, case elements with high pressure at low temperatures, indirect electrical heating appropriate metal. Alternatively, element be isolated allowing emitted dc operated lamp to pass through pulsating cloud same modulated discharge. selectively and produce signal output ac detection system. Other no since they not passage therefore modulated. Atomic absorption spectrophotometers incorporating two techniques isolation have been constructed their performance studied.