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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Larkins, Peter L. |
| Copyright Year | 1992 |
| Abstract | Profiles of the resonance lines of Ag, Co, Hg, Mn, Mg and Pt, emitted by hollow cathode lamps (HCLs), have been measured for a range of currents using a scanning échelle monochromator. The effect on the calibration graph of self-absorption broadening or self-reversal due to higher currents is complex and is strongly influenced by the presence of isotope and hyperfine structure. The échelle monochromator has also been used to measure absorption linewidths and shifts in the air–acetylene flame, and results obtained for Ag, Li, Mg and Mn were found to be in good agreement with calculated values reported in the literature. For Li, the use of a semiconductor laser diode instead of a hollow cathode light source is shown to overcome some of the inherent disadvantages of the HCL and to provide improved sensitivity and better linearity. |
| Starting Page | 265 |
| Ending Page | 272 |
| Page Count | 8 |
| File Format | |
| ISSN | 02679477 |
| Volume Number | 7 |
| Issue Number | 2 |
| Journal | Journal of Analytical Atomic Spectrometry |
| DOI | 10.1039/JA9920700265 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | HCL Li Resonance Cathode Echelle grating Monochromator Graph of a function Isotope Hyperfine structure Laser diode Diode |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Analytical Chemistry |
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