Ugo, P Determination of residual aromatic amine hydrochlorides in process samples of di-isocyanate used in the manufacture of polyurethane A comparison of electroanalytical methods. [electronic resource] - Talanta May 1988 - 379-83 p. digital Publication Type: Journal Article ISSN: 0039-9140 Standard No.: 10.1016/0039-9140(88)80031-6 doi