Direct determination of N-nitrosodiethanolamine in triethanolamine with HPLC, ion-exchange chromatography and UV-detection
Autor: | J. Lang, B. Büchele, L. Hofmann |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Fresenius' Journal of Analytical Chemistry. 336:328-332 |
ISSN: | 1618-2650 0937-0633 |
DOI: | 10.1007/bf00331393 |
Popis: | The difference in the pK-values and chemical structure of N-nitrosodiethanolamine and triethanolamine in connection with a clear UV-maximum at 235 nm make possible a direct determination of N-nitrosodiethanolamine in triethanolamine up to 10 ng/ml possible when using an eluent of high optical transparency and a separating column with a high selectivity and reduced internal diameter. Linearity, reproducibility and accuracy meet the requirements to be fulfilled by trace-analytical methods. |
Databáze: | OpenAIRE |
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