ZOLLNER, E [Colorimetric determination of diazotizable amines (novocaine, anesthesin, sulfonamide) through coupling with thymol]. [electronic resource] - Pharmazeutische Zentralhalle fur Deutschland May 1957 - 199-206 p. digital Publication Type: Journal Article Subjects--Topical Terms: AminesAminobenzoates--analysisBenzocaineColorimetryProcaine--analysisSulfanilamideSulfanilamidesSulfonamides--analysisThymol