Abstract
Six brass alloys were tested using laser-induced breakdown spectroscopy (LIBS) to measure the optimal spectral wavelength of Cu and to determine the optimum system configurations for alloy measurements. The accuracy of the calibration curve was improved by a linear correlation for interference by the other elements and an exponential relationship for self-absorption. Multivariate regression method was used to compensate for the matrix effects. Results show a very satisfying improvement using the multivariate analysis method with the coefficient of determination of the optimized calibration curve improved from 0.953 8 to 0.999 8.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1263-1266 |
| Number of pages | 4 |
| Journal | Qinghua Daxue Xuebao/Journal of Tsinghua University |
| Volume | 50 |
| Issue number | 8 |
| State | Published - Aug 1 2010 |
| Externally published | Yes |
Keywords
- Laser-induced breakdown spectroscopy (LIBS)
- Multivariate analysis
- Quantitative analysis
- Self-absorption
ASJC Scopus subject areas
- Engineering(all)
- Computer Science Applications
- Applied Mathematics