Determination of nucleic acids based on their resonance light scattering enhancement effect on metalloporphyrin derivatives

被引:33
作者
Chen, ZG [1 ]
Ding, WF
Liang, YZ
Ren, FL
Han, YL
Liu, JB
机构
[1] Shantou Univ, Dept Chem, Shantou 515063, Peoples R China
[2] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
关键词
resonance light scattering (RLS); metalloporphyrin derivatives; nucleic acids;
D O I
10.1007/s00604-005-0338-3
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A new method for the determination of nucleic acids at nanogram per mL level is proposed based on the enhanced resonance light scattering (RLS) signal resulting from the interaction of metalloporphyrins with nucleic acids. Under optimum conditions, the weak RLS signal of metalloporphyrin is enhanced by nucleic acids, and the enhanced RLS intensity is proportional to the concentration of nucleic acids. The detection limits of calf thymus DNA were 3.5 ng mL(-1), 2.9ng mL(-1) and 1.0 ng mL(-1) for three metalloporphyrins, respectively. Synthetic samples were determined with satisfactory results.
引用
收藏
页码:35 / 42
页数:8
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