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dc.contributor.authorChen, X
dc.contributor.author陈曦
dc.contributor.authorChen, W
dc.contributor.author陈薇
dc.contributor.authorWang, XR
dc.contributor.author王小如
dc.date.accessioned2012-06-23T00:34:34Z
dc.date.available2012-06-23T00:34:34Z
dc.date.issued2000
dc.identifier.citationACTA CHIMICA SINICA,2000,58(5):563-566zh_CN
dc.identifier.issn0567-7351
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/12933
dc.description.abstractUpon the electrochemical oxidation of tris(2, 2' - bipyridyl) ruthenium(II) [Ru(bpy)(3)(2+)] and vitamin Bl(thiamine) in 0.1 mol/L NaOH (aqueous solution), a bright electrochemiluminescence (ECL) was observed. Vitamin B1 was transformed into a yellow pseudo - base and a colorless thiol formed when treated with 0.1 mol/L NaOH for 5 and 20min, respectively. The thiol form was oxidized at + 0.88 V(vs.Ag/AgCl) to produce a free radical, which reacted with Ru(bpy)(3)(3+) at a glassy carbon electrode. The light emission at wavelength 609nm was caused by the transition of the excited state of Ru(bpy)(3)(2+) to its ground state. The pH of solution effected the hydrolysis of vitamin B1, which caused the different light emission intensity of Ru(bpy)(3)(2+) and vitamin B1 solution. ECLs of some coexisting substances such as amino acids, sugars, hydroxyl carboxylic acids, vitamin Bz, Bg were also detected in this now system.zh_CN
dc.language.isozhzh_CN
dc.publisherACTA CHIMICA SINICAzh_CN
dc.subjectelectrochemiluminescencezh_CN
dc.subjectvitamin B-1zh_CN
dc.subjectflow injection analysiszh_CN
dc.subjecttris(2,2 '-bipyridyl) rutheniumzh_CN
dc.titleElectrochemiluminescent behaviour of vitamin B-1 (thiamine) and tris(2,2 '-bipyridyl) ruthenium in a flow systemzh_CN
dc.typeArticlezh_CN


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