title: [Identification of tinglizi by derivative spectrum].
abstract: This paper reports a study on the application of derivative spectrum to the identification of tinglizi and its adulterants. The spectra of two normal species of tinglizi have been found identical, but those of six adulterants obviously different from the normal.
authors.forename: B
authors.initials: B
authors.lastname: Du
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: J
authors.initials: J
authors.lastname: Ni
mesh_terms: D004340:Drug Contamination; D004365:Drugs, Chinese Herbal; D010598:Pharmacognosy; D013056:Spectrophotometry, Ultraviolet / Q000379:methods
chemical_list: D004365:Drugs, Chinese Herbal