The document introduces the operating parameters selection method of a new boosted discharge bismuth lamp developed by Agilent. This lamp has higher intensity and less curved calibration graphs than conventional bismuth hollow cathode lamp.
Agilent has developed a boosted-discharge bismuth hollow-cathode lamp designed to provide greater intensity and less curved calibration graphs compared to conventional lamps. This technology utilizes a second, electrically isolated discharge to excite sputtered atoms, reducing self-absorption and improving the detection of atomic resonance lines.
The document presents experimental results evaluating the lamp's performance in flame Atomic Absorption Spectroscopy (AAS) using an Agilent SpectrAA 50 spectrometer. It analyzes the effects of lamp current and slit width on detection limits and sensitivity, concluding with specific recommendations for optimal operating conditions.
| Recommended Operating Current | 10 mA |
|---|---|
| Recommended Slit Width | 1.0 nm |
| Analytical Line | Bi 223.1 nm |
| Instrument Used | Agilent SpectrAA 50 |
The recommended settings are a lamp current of 10 mA with a 1.0 nm slit at the Bi 223.1 nm line.
It reduces self-absorption by using a second discharge to excite atoms, resulting in less curved calibration graphs compared to conventional lamps.