Authors: B Gawdzik U CzerwińskaBil 
              Publish Date: 1991/08/01
              Volume: 32, Issue: 3-4, Pages: 167-170 
			  
              Abstract
              A weakly polar porous copolymer and the sulfonic acid cation exchanger based on this copolymer were tested as sorbents for offline preconcentration of aromatic amines from water Minicolumns packed with the 14dimethacryloyloxymethylnaphthalene—divinylbenzene copolymer and the cation exchanger were used for the solidphase extraction of polar amines
              
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