Bibliographic Details
| Title: |
Numerical simulations of gas flows through an open, non-contact cell for LA-ICP-MS. |
| Authors: |
Dhinesh Asogan1,2, Barry L. Sharp1, Ciaran J. P. O'Connor3, Damon A. Green3, Jay Wilkins4 |
| Source: |
JAAS (Journal of Analytical Atomic Spectrometry). Mar2011, Vol. 26 Issue 3, p631-634. 4p. |
| Subjects: |
Gas flow, Laser ablation, Simulation methods & models, Atmosphere, Particles, Gas dynamics, Inductively coupled plasma mass spectrometry |
| Abstract: |
Numerical simulations of gas flows through an open, non-contact cell for laser ablation are presented. The cell consists of dual, annular, concentric micro-jet gas arrays to entrain ablated material (the carrier flow) and exclude atmosphere (the curtain flow). This study shows that the design of the cell affords a very high degree of exclusion of atmospheric gases, using a relatively low curtain flow of 2.5 l min−1(with a carrier flow of 1.2 l min−1He), and demonstrates the efficacy of the micro-jet arrays in providing an axially symmetric exclusion zone. Minimum particle transit times through the cell were calculated to be of the order of 50–100 ms. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
