Luminol chemiluminescence actuated by modified natural sepiolite material and its analytical application. Issue 6 (26th February 2015)

• Record Type: Journal Article
• Authors: Wang, Zhihua; Zhao, Changxin; Han, Dongmei; Gu, Fubo
• Is Part Of: Analytical methods. Volume 7:Issue 6(2015)
• Page Start: 2779
• Page End: 2785
• Publication Date: 2015-02-26
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/c4ay03093a
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : It was found that a modified natural sepiolite material could tremendously catalyze the chemiluminescence (CL) emission of the luminol–H2 O2 system. Abstract : It was found that a modified natural sepiolite material could tremendously catalyze the chemiluminescence (CL) emission of the luminol–H2 O2 system. A variety of characterization methods, including FTIR, XRD, SEM, BET and CL spectroscopy, were utilized to investigate the possible CL enhancement mechanism. Moreover, a modified natural sepiolite was used for the luminol-driven CL detection of H2 O2 . Under the optimum conditions, the CL intensity was proportional to the concentration of H2 O2 in the range from 0.01 to 8 μM. The detection limit ( S / N = 3) was 8.8 nM and the relative standard deviation (RSD) for twelve repeated measurements of 1.0 μM H2 O2 was 2.5%. The proposed method was also successfully applied to detect H2 O2 in tap and rain water samples with recoveries of 98–104%. Thus, this method can be used as a sensitive detection tool for the analysis of H2 O2 .