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	DETERMINATION OF BIACETYL BY SENSITIZED PHOTOCHEMICAL KINETIC FLUOROMETRY
	Guo, X. Q. ; Xu, J. G. ; Huang, X. Z. ; Zhao, Y. B. ; Chen, G. Z. ; Guo XQ(郭祥群)
	1993
关键词	PERFORMANCE LIQUID-CHROMATOGRAPHY FLUORESCENCE DETECTION FLUOROMETRIC-DETERMINATION PHOSPHORESCENCE PHOTOREDUCTION REDUCTION
英文摘要	A new in-situ photochemical kinetic fluorimetric method was proposed for the determination of biacetyl (BI). It is based on the sensitization of BI on the photochemical reaction of amaranth (AM). AM, a nonfluorescent compound was converted into an intensively fluorescent compound in a slightly alkaline medium by the sensitized photochemical reaction, and BI was indirectly determined by monitoring the change of the fluorescence intensity. The determination can be carried out by fixed-time method or tangent method. The kinetic behavior of the reaction and the effects of some experimental conditions were investigated and discussed. The calibration graph was rectilinear from 1.0 ng ml-1 to 10.0 mug ml-1 of BI (r = 0.999), the limit of detection was 1.0 ng ml-1, and the coefficient of variation was 0.44% for 0.90 mug ml-1 of BI (n = 6). The mechanism for the sensitization of BI was examined and the triplet-triplet energy transfer, in which BI acted as the energy donor and AM as the energy acceptor, was suggested to be the main cause. Its application to real samples has been tested.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/64050]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Guo, X. Q.,Xu, J. G.,Huang, X. Z.,et al. DETERMINATION OF BIACETYL BY SENSITIZED PHOTOCHEMICAL KINETIC FLUOROMETRY[J],1993.
APA	Guo, X. Q.,Xu, J. G.,Huang, X. Z.,Zhao, Y. B.,Chen, G. Z.,&郭祥群.(1993).DETERMINATION OF BIACETYL BY SENSITIZED PHOTOCHEMICAL KINETIC FLUOROMETRY..
MLA	Guo, X. Q.,et al."DETERMINATION OF BIACETYL BY SENSITIZED PHOTOCHEMICAL KINETIC FLUOROMETRY".(1993).

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