| Literature DB >> 17809419 |
Abstract
The low-power electricglow discharge in helium can excite efftctively the characteristic emission lines of sodium and potassium. The helium-glow photometer used to generate the glow and measure the light is a relatively simple apparatus; it can be used to analyze samples containing 10(-14) mole or more of sodium and potassium. Overall precision of the apparatus and method is 5 percent or better.Entities:
Year: 1965 PMID: 17809419 DOI: 10.1126/science.149.3682.448
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728