La impureza asociada a Nethyldiethanolamine (CAS 139-87-7) suele manifestarse como trazas de aminas mono y policondensadas | subproductos de transesterificación | sales amónicas | compuestos oxidados y agua residual que afectan color | basicidad y estabilidad hidrolítica. Su detección requiere técnicas analíticas específicas como cromatografía de gases acoplada a espectrometría de masas | HPLC con detección por derivatización | ensayo de titulometría ácida y Karl Fischer para humedad. Los límites de impureza se establecen en ppm según normativa de calidad y se controlan mediante destilación a vacío | neutralización y filtración sobre carbón activo o resinas iónicas. Un control riguroso minimiza corrosión | olor y degradación del producto.
Referencias
Lemire, Sharon W., et al. “Quantitative Determination of the Hydrolysis Products of Nitrogen Mustards in Human Urine by Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry*.†Journal of Analytical Toxicology, vol. 27, no. 1, Jan. 2003, pp. 1–6, https://doi.org/10.1093/jat/27.1.1.
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