Intracavity optogalvanic spectroscopy. An analytical technique for 14C analysis with subattomole sensitivity.

@article{Murnick2008IntracavityOS,
  title={Intracavity optogalvanic spectroscopy. An analytical technique for 14C analysis with subattomole sensitivity.},
  author={Daniel E Murnick and Ozgur Dogru and Erhan Ilkmen},
  journal={Analytical chemistry},
  year={2008},
  volume={80 13},
  pages={4820-4}
}
We show a new ultrasensitive laser-based analytical technique, intracavity optogalvanic spectroscopy, allowing extremely high sensitivity for detection of (14)C-labeled carbon dioxide. Capable of replacing large accelerator mass spectrometers, the technique quantifies attomoles of (14)C in submicrogram samples. Based on the specificity of narrow laser resonances coupled with the sensitivity provided by standing waves in an optical cavity and detection via impedance variations, limits of… CONTINUE READING