Detection of Human Serum Albumin by a Photoinduced Fluorogenic Reaction
作者:
Qing-Zhi Zhu,
You-Yu Lin,
Dong-Hui Li,
Jin-Gou Xu,
Xiang-Qun Guo,
期刊:
Analytical Letters
(Taylor Available online 1999)
卷期:
Volume 32,
issue 9
页码: 1775-1786
ISSN:0003-2719
年代: 1999
DOI:10.1080/00032719908542932
出版商: Taylor & Francis Group
关键词: 9,10-Anthraquinone;Human Serum Albumin;Photochemical reaction;Spectrofluorimetry
数据来源: Taylor
摘要:
9,10-anthraquinone (AQ), a photochemically reactive substrate, has been conjugated together with human serum albumin (HSA), and the photoinduced fluorogenic reaction of the HSA-AQ conjugate was studied. This conjugate shows a greatly enhanced photochemical fluorimetric activity compared with that of free AQ. The spectral characteristics of the photoreduction product of the HSA-AQ conjugate was investigated and large blue shifts in both the excitation and emission bands, compared with those of free AQ, were observed. The kinetic behavior of the photoinduced fluorogenic reaction and the effects of some experimental conditions were also investigated. The enhancement in the photoinduced fluorogenic reactivity of HSA-AQ was utilized in the sensitive detection of HSA by a simple in-situ photoinduced kinetic fluorimetric method. The calibration graph was linear over the range 0-1.0x10−6mol/L HSA. The detection limit was 6.5x10−10mol/L HSA and the relative standard deviation was 2.7% for 6.0x10−8mol/L HSA (n=6).
点击下载:
PDF (349KB)
返 回