title: [Study on qualitative analysis method of high performance liquid chromatography by simultaneous multi-wavelength detection].
abstract: In this paper, we introduce an HPLC qualitative method, that is, multiwavelength detection qualitative analysis method. According to Beer's law, for a certain compounds the ratio of peak areas at different wavelengths is a constant. Comparing the ratio of peak areas of a component at different wavelengths with that of the standard by means of simultaneous multi-wavelength detection, we established a convenient qualitative method. This method has been applied successfully to qualitative analysis of 18 aromatic amines in the prohibited azo dyes.
authors.affiliation: Zhejiang Imp & Exp Commodity Inspection Bureau, Hangzhou, 310012.
authors.forename: X
authors.initials: X
authors.lastname: Chen
authors.forename: Z
authors.initials: Z
authors.lastname: Zheng
authors.forename: X
authors.initials: X
authors.lastname: Shi
mesh_terms: D001560:Benzidines / Q000032:analysis / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D010647:Phenyl Ethers / Q000032:analysis / Q000302:isolation & purification; D010655:Phenylenediamines / Q000032:analysis / Q000302:isolation & purification; D013056:Spectrophotometry, Ultraviolet
chemical_list: D001560:Benzidines; D010647:Phenyl Ethers; D010655:Phenylenediamines; C015126:di-(4-aminophenyl)ether; C029876:benzidine; C007294:4-methoxy-3-phenylenediamine