Direct determination of N-nitrosodiethanolamine in triethanolamine with HPLC, ion-exchange chromatography and UV-detection

Autor: J. Lang, B. Büchele, L. Hofmann
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