title: [Extraction-spectrophotometric determination of copper in tablets and injections of Chinese medicine].
abstract: Cu reacts with neo-cuproin and eosin Y to form a coloured associated complex. In chloroform its apparent E value is 6.83 X 10(4) 1 mol-1 cm-1 at lambda = 544 nm. We used this system to determine the contents of trace copper in some tablets and injections of Chinese medicine. This method is simple, highly sensitive and selective.
authors.forename: J C
authors.initials: JC
authors.lastname: Yen
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Bei
authors.forename: D S
authors.initials: DS
authors.lastname: Su
authors.forename: M
authors.initials: M
authors.lastname: Zhu
mesh_terms: D003300:Copper / Q000032:analysis*; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D007267:Injections; D013053:Spectrophotometry; D013607:Tablets
chemical_list: D004365:Drugs, Chinese Herbal; D013607:Tablets; D003300:Copper