The Study of Naphthoquinones and Their Complexes with DNA by Using Raman Spectroscopy and Surface Enhanced Raman Spectroscopy: New Insight into Interactions of DNA with Plant Secondary Metabolites

Table 3

The ratio of the size of the peak intensities at 683/670 cm⁻¹ with a peak intensity of 683 cm⁻¹.

DNA-naphthoquinone	683/670 cm^−1
1,4-Naphthoquinone	0.8
Binaphthoquinone	0.7
Juglone	0.9
Lawsone	0.7
Plumbagin	1.3