title: Determination of melamine by flow injection analysis based on chemiluminescence system.
abstract: In this paper, based upon the phenomenon that melamine can obviously enhance the CL signal of the luminol-H(2)O(2) system in basic medium, a simple, rapid and sensitive flow injection chemiluminescence (FI-CL) method for the determination of melamine has been developed. Under the optimum conditions, the linear range for the determination of melamine was 0.2-80μgmL(-1) with a detection limit of 0.12μgmL(-1) calculated as proposed by IUPAC and a relative standard deviation of 3.26% for 11 solutions of 10μgmL(-1) melamine on the same day. The proposed method was satisfactorily applied to determine melamine in milk-based products and satisfactory results were obtained without interferences from the sample matrix. Moreover, one assay produce takes only 25s and the minimum sampling rate is about 120 samplesh(-1), which indicated that the FI-CL method was suitable for high throughput and real-time melamine analysis.
authors.affiliation: School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
authors.forename: Hua-Jin
authors.initials: HJ
authors.lastname: Zeng
authors.forename: Ran
authors.initials: R
authors.lastname: Yang
authors.forename: Qing-Wen
authors.initials: QW
authors.lastname: Wang
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Li
authors.forename: Ling-Bo
authors.initials: LB
authors.lastname: Qu