Publication details
Development of a remote laser-induced breakdown spectroscopy system for investigation of calcified tissue samples
| Authors | |
|---|---|
| Year of publication | 2010 |
| Type | Article in Periodical |
| Magazine / Source | Applied Optics |
| MU Faculty or unit | |
| Citation | |
| Web | odkaz na abstrakt |
| Field | Inorganic chemistry |
| Keywords | spectroscopy; laser induced breakdown; plasma; remote; sensing; bone |
| Description | The development of a remote laser induced breakdown spectroscopy (LIBS) setup with an off-axis Newtonian collection optics, Galilean-based focusing telescope, and a 532 nm flattop laser beam source is presented. It was tested at a 6 m distance on a slice of bone to simulate its use in the field (e.g. archaeological excavations). This setup is sufficiently sensitive to both major (P, Mg) and minor elements (Na, Zn, Sr). The quantities of Mg, Zn, and Sr correspond to the values from reference laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) within an approximately 20% range of uncertainty. A single point calibration was performed to a bone meal standard . The radial element distribution is almost invariable by use of LA ICP MS, whereas the LIBS measurement showed a strong dependence on the bone porosity. Based on these results, this setup with a relatively large (350 mm) collecting mirror is capable of semiquantitative analysis at the level of units of mg kg-1. |
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