Trace element partition coefficients of alkaline igneous rock-forming minerals: st...
| Author(s): |
Castro, Jeyne Pricylla
[1]
;
Gallo, Leonardo Sant'Ana
[2]
;
Zanotto, Edgar Dutra
[2]
;
Pereira-Filho, Edenir Rodrigues
[1]
Total Authors: 4
|
| Affiliation: | [1] Univ Fed Sao Carlos, Dept Chem, GAIA, POB 676, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Mat Engn Dept, Vitreous Mat Lab, LaMaV, DEMa, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY; v. 4, n. 15, p. 8-18, APR-JUN 2017. |
| Web of Science Citations: | 0 |
| Abstract | |
Laser ablation hyphenated with inductively coupled plasma-mass spectrometry (LA-ICP-MS) was used to evaluate the homogeneity of high performance glass and glass-ceramic samples. Signal profiles of B-10, Mg-26, Al-27, Ti-47, Zr-90 and Sb-121 were monitored, and solid samples were analyzed directly without sample preparation. A fractional factorial design was used to evaluate the influence of 6 parameters. A matrix with 5 rows and 5 columns (total of 25 points) was analyzed for 6 samples (3 glasses and 3 glass-ceramics). Fifty pulses were conducted at each point to observe the surface, and 50 additional pulses were later conducted at the same positions to observe the bulk. The analyzed samples presented homogeneous surface and bulk profiles with respect to the main oxide elements (Al and Mg) and nucleating agents (Ti and Zr). Relative standard deviations (RSDs) for the monitored elements varied from 3.2 to 23.2%. When the glasses were compared with the glass-ceramics, significant differences were observed only for B-10. Al and B presented high signals at the bottom of the samples (top of the melting crucible). In contrast, Zr and Ti presented homogeneous profiles throughout the samples. (AU) | |
| FAPESP's process: | 16/17221-8 - Composition evaluation of hard discs from electronic waste using spectroanalytical techniques: rare earth and noble metals determination |
| Grantee: | Jeyne Pricylla de Castro |
| Support type: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 13/07793-6 - CEPIV - Center for Teaching, Research and Innovation in Glass |
| Grantee: | Edgar Dutra Zanotto |
| Support type: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 14/22408-4 - Use of Laser-Induced Breakdown Spectroscopy (LIBS) for direct alloys analyses |
| Grantee: | Jeyne Pricylla de Castro |
| Support type: | Scholarships in Brazil - Master |
| FAPESP's process: | 13/00457-0 - Microstructure and mechanical properties of glass-ceramics from the CaO-MgO-Al2O3-SiO2 system for ballistic protection |
| Grantee: | Leonardo Sant'Ana Gallo |
| Support type: | Scholarships in Brazil - Doctorate |