title: [Analysis of organic additives in copper-plating brightener by high performance liquid chromatography].
abstract: This paper describes a high performance liquid chromatographic method for analysis of organic additives in copper-plating brightener. The copper-plating brightener was filtered through 0.45 microgram micropore membrane and determined on a Spherisorb-C6H5 column, with V(methanol):V(water) = 30:70 mobile phase at the flow rate of 1.5 mL/min, and detected at UV 210 nm. 2-benzimidazolethiol, ethylene thiourea, 1-propanesulfonic acid 3,3'-dithio-bis-disodium salt were separated and determined. The recoveries were more than 99% with CV less than 1%. The method is simple and rapid.
authors.affiliation: Guangdong University of Technology, Guangzhou 510090, China.
authors.forename: X L
authors.initials: XL
authors.lastname: Cheng
authors.forename: Q B
authors.initials: QB
authors.lastname: Li
authors.forename: H B
authors.initials: HB
authors.lastname: Liang