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| Titel: |
Composition of chloronaphthalene congeners in technical chloronaphthalene formulations of the Halowax series |
| Auteur: |
Falandysz, J. Kawano, M. Ueda, M. Matsuda, M. Kannan, K. Giesy, J. P. Wakimoto, T. |
| Verschenen in: |
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering |
| Paginering: | Jaargang 35 (2000) nr. 3 pagina's 281-298 |
| Jaar: |
2000-03 |
| Inhoud: |
Normalised pattern (DB-5 capillary column) of polychlorinated naphthalenes (PCNs; CNs) for all seven technical Halowax formulations and mass percent contribution (CN %) for an equivalent mixture of Halowax 1031, 1000, 1001, 1099, 1013, 1014 and 1051 (Equi-Halowax) is presented. 2,3-DiCN (PCN no. 10), 1,6,7-and 2,3,6-TrCNs (PCNs nos 25 and 26) and probably also 1,3,5-TrCN (PCN no. 19), 1,3,6,7-, 1,2,3,6-and 1,2,3,8-TeCN (PCNs nos. 44, 29 and 31), and 1,2,3,6,7,8-HxCN (PCN no. 70) were absent in commercial PCNs formulations. The congeners such as 1,2,3-TrCN (PCN no. 13), 1,3,8-TrCN (PCN no. 22) and 1,2,3,6,7-PeCN (PCN no. 54) were present in the mixtures at very low concentrations. The congeners most abundant in Halowax mixtures are usually chlorinated at α-positions (1, 4, 5, 8-positions) of the naphthalene nuclei. Because of some unresolved peaks observed on the chromatograms due to insufficient separation power of DB-5, and also of many other liquid phases used in capillary gas Chromatographie separation of PCNs even when mass spectrometric detection was used, a perfect isomer and congener composition of PCN mixtures still has to be elucidated. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 11 gevonden artikelen
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