Details
| Titel in Übersetzung | Analysis of N-nitrosamines in rubber and vulcanizates - Influence of inhibitors |
|---|---|
| Originalsprache | Deutsch |
| Seiten (von - bis) | 532-537 |
| Seitenumfang | 6 |
| Fachzeitschrift | KGK-Kautschuk und Gummi Kunststoffe |
| Jahrgang | 49 |
| Ausgabenummer | 7-8 |
| Publikationsstatus | Veröffentlicht - Juli 1996 |
| Extern publiziert | Ja |
Abstract
N-nitrosamines (NA) are detected in rubber and vulcanizates by methanol extraction and subsequent detection employing GC-TEA. The use of ascorbic acid as an inhibitor of nitrosation during extraction has a negative influence on the quality of the analysis. Interferences in the chromatogram hinder the classification and determination of N-nitroso dimethyl-amine (NDMA), N-nitroso diethylamine (NDEA) and N-nitroso dipropylamine (NDPA). This work elucidates the mechanism of the ascorbic acid disturbance. α-hydroxy acids decay at the temperature of the Chromatographic columns by generating CO which will give a signal like NO at the TEA-detector. The use of hydroquinone instead of ascorbic acid avoids these interferences. In this way the determination of NDMA, NDEA and NDPA is significantly improved.
Schlagwörter
- Inhibitors, Methanol extraction, N-nitrosamines, Rubber, Vulcanizates
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Maschinenbau
- Werkstoffwissenschaften (insg.)
- Polymere und Kunststoffe
- Ingenieurwesen (insg.)
- Wirtschaftsingenieurwesen und Fertigungstechnik
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: KGK-Kautschuk und Gummi Kunststoffe, Jahrgang 49, Nr. 7-8, 07.1996, S. 532-537.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Bestimmung von N-nitrosaminen in kautschuken und vulkanisaten - Einfluß von inhibitoren
AU - Blume, A.
AU - Giese, U.
AU - Schuster, R. H.
PY - 1996/7
Y1 - 1996/7
N2 - N-nitrosamines (NA) are detected in rubber and vulcanizates by methanol extraction and subsequent detection employing GC-TEA. The use of ascorbic acid as an inhibitor of nitrosation during extraction has a negative influence on the quality of the analysis. Interferences in the chromatogram hinder the classification and determination of N-nitroso dimethyl-amine (NDMA), N-nitroso diethylamine (NDEA) and N-nitroso dipropylamine (NDPA). This work elucidates the mechanism of the ascorbic acid disturbance. α-hydroxy acids decay at the temperature of the Chromatographic columns by generating CO which will give a signal like NO at the TEA-detector. The use of hydroquinone instead of ascorbic acid avoids these interferences. In this way the determination of NDMA, NDEA and NDPA is significantly improved.
AB - N-nitrosamines (NA) are detected in rubber and vulcanizates by methanol extraction and subsequent detection employing GC-TEA. The use of ascorbic acid as an inhibitor of nitrosation during extraction has a negative influence on the quality of the analysis. Interferences in the chromatogram hinder the classification and determination of N-nitroso dimethyl-amine (NDMA), N-nitroso diethylamine (NDEA) and N-nitroso dipropylamine (NDPA). This work elucidates the mechanism of the ascorbic acid disturbance. α-hydroxy acids decay at the temperature of the Chromatographic columns by generating CO which will give a signal like NO at the TEA-detector. The use of hydroquinone instead of ascorbic acid avoids these interferences. In this way the determination of NDMA, NDEA and NDPA is significantly improved.
KW - Inhibitors
KW - Methanol extraction
KW - N-nitrosamines
KW - Rubber
KW - Vulcanizates
UR - http://www.scopus.com/inward/record.url?scp=0030188663&partnerID=8YFLogxK
M3 - Artikel
AN - SCOPUS:0030188663
VL - 49
SP - 532
EP - 537
JO - KGK-Kautschuk und Gummi Kunststoffe
JF - KGK-Kautschuk und Gummi Kunststoffe
SN - 0948-3276
IS - 7-8
ER -