Application of Conventional and Low-Flow Torches for the Analysis of Xylene- and Tetralin-Based Petroliferous Materials by Argon and Oxygen-Argon ICP-AES
✍ Scribed by I.B. Brenner; E. Dorfman
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 538 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0026-265X
No coin nor oath required. For personal study only.
✦ Synopsis
The merits of xylene and tetralin as diluents are compared for the analysis of petroliferous materials, using argon and argon-oxygen ICPs and conventional demountable and low-flow torches. The use of a mixed argon-oxygen plasma eliminated the formation of carbon particles in the torches. However, background was higher and signal-to-background ratios were generally lower in the oxygen-doped plasma. With tetralin the plasmas were more stable, the (\mathrm{Swan}) band emission was sharply reduced, and SBRs were higher than those observed in xylene. Using Be as an internal standard, the short-term RSDs and limits of detection for tetralin solvent were superior to those of xylene. A wide range of petroliferous certified reference materials in xylene and in tetralin were analyzed and the data obtained indicated that the accuracy in the case of tetralin was superior. 1995 Academic Press, Inc.