Membrane Extraction of Selected Nitrogen-Containing Compounds from Crude Industrial Waste Water


App Note 3/2004

A procedure to analyze several semi-polar, nitrogen-containing compounds in untreated industrial waste water by means of membrane extraction is described. The selected analytes cover a broad range of volatility and can be extracted with either chlororform or diisopropyl ether. Recoveries are 40 – 110% for test solutions containing approximately 250 μg/L.