IR laser extraction technique applied to oxygen isotope analysis of small biogenic silica samples.

@article{Crespin2008IRLE,
  title={IR laser extraction technique applied to oxygen isotope analysis of small biogenic silica samples.},
  author={Julien Crespin and Anne Alexandre and Florence Sylvestre and Corinne Sonzogni and Christine Paill{\`e}s and Vincent Garreta},
  journal={Analytical chemistry},
  year={2008},
  volume={80 7},
  pages={2372-8}
}
An IR-laser fluorination technique is reported here for analyzing the oxygen isotope composition (delta18O) of microscopic biogenic silica grains (phytoliths and diatoms). Performed after a controlled isotopic exchanged (CIE) procedure, the laser fluorination technique that allows one to visually check the success of the fluorination reaction is faster than the conventional fluorination technique and allows analyzing delta18O of small to minute samples (1.6-0.3 mg) as required for high… CONTINUE READING