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A PIXE METHOD TO STUDY BIOLOGY AT THE DNA LEVEL
【摘要】 <正> An external proton beam system with a detection sensitivity of 10 g for ruthenium was used to study DNA. A metal- organic compound tris (4,7- diphenylphenanthroline) ruthenium (Ⅱ) [Ru(DiP)32-] was chosen as a metal marker. The target DNA labeled with Ru (DiP)32- was electrophoresed in an agarose gel and then was analysed by PIXE. The DNA sample with the metal marker showed clearly Ru peaks in the PIXE spectra, while the control showed no Ru peak at all. This method can be used to study biology at the DNA level.
【Abstract】 An external proton beam system with a detection sensitivity of 10 g for ruthenium was used to study DNA. A metal- organic compound tris (4,7- diphenylphenanthroline) ruthenium (Ⅱ) [Ru(DiP)32-] was chosen as a metal marker. The target DNA labeled with Ru (DiP)32- was electrophoresed in an agarose gel and then was analysed by PIXE. The DNA sample with the metal marker showed clearly Ru peaks in the PIXE spectra, while the control showed no Ru peak at all. This method can be used to study biology at the DNA level.
【Key words】 Deoxyribonucleic acid (DNA) Tris (4; 7- diphenylphenanthroline)ruthenium (Ⅱ) Electrophorese PIXE;
- 【文献出处】 Nuclear Science and Techniques ,核科学与技术(英文版) , 编辑部邮箱 ,1990年04期
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