Details
| Translated title of the contribution | Analysis of N-nitrosamines in rubber and vulcanizates - Influence of inhibitors |
|---|---|
| Original language | German |
| Pages (from-to) | 532-537 |
| Number of pages | 6 |
| Journal | KGK-Kautschuk und Gummi Kunststoffe |
| Volume | 49 |
| Issue number | 7-8 |
| Publication status | Published - Jul 1996 |
| Externally published | Yes |
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.
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Materials Science(all)
- Polymers and Plastics
- Engineering(all)
- Industrial and Manufacturing Engineering
- Materials Science(all)
- Materials Chemistry
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In: KGK-Kautschuk und Gummi Kunststoffe, Vol. 49, No. 7-8, 07.1996, p. 532-537.
Research output: Contribution to journal › Article › Research › 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 -