| 摘要 |
<p>An atomic absorption spectrophotometer, wherein the light source which produces a beam of light having the same emission line spectrum as that of a sample to be analyzed is energized with a relatively large current and alternatively a relatively small current so that the emission line spectrum of the light beam has a greater width and alternatively a smaller width, the ratio between the two currents and consequently the two widths of the emission line being variable in accordance with the concentration of a sample to be measured.</p> |
