title: N-Nitrosodiethanolamine in synthetic cutting fluids: a part-per-hundred impurity.
abstract: N-nitrosodiethanolamine has been found to be present at a concentration of 0.02 to 3 percent in several brands of synthetic cutting fluids. Its identity was confirmed by three independent techniques: (i) by measuring the retention times on two different high-performance liquid-chromatography columns, (ii) by dehydration to N-nitrosomorpholine, and (iii) by preparation of the O-methyl ether derivative.
mesh_terms: D004785:Environmental Pollutants / Q000009:adverse effects; D004983:Ethanolamines / Q000032:analysis; D006801:Humans; D009369:Neoplasms / Q000139:chemically induced; D009602:Nitrosamines / Q000032:analysis*; D009787:Occupational Medicine
chemical_list: D004785:Environmental Pollutants; D004983:Ethanolamines; D009602:Nitrosamines