FELDMANN, E G Selective colorimetric determination of local anesthetics containing a tertiary amine. [electronic resource] - Journal of dental research - 313-9 p. digital Publication Type: Journal Article ISSN: 0022-0345 Standard No.: 10.1177/00220345600390021301 doi Subjects--Topical Terms: AminesAnestheticsAnesthetics, Local--chemistryColorimetry