Table 2. Correlation coefficients for all possible combinations of the four parameters used in eq. (1).

Parameter	Correlation Coefficient (r)
E	0.77
Len	0.49
Conc	0.44
DNA	−0.21
E + Len	0.83
E + Conc	0.93
E + DNA	0.71
Len + Conc	0.65
Len + DNA	0.49
Conc + DNA	0.50
E + Len + Conc	0.98
E + Len + DNA	0.84
E + Conc + DNA	0.93
Len + Conc + DNA	0.66
E + Len + Conc + DNA	0.98

E  =  DNA strength parameter per base; Len  =  Length of nucleotide sequence (number of base pairs); Conc  =  [Na+] concentration of the solution (Molar); DNA  =  Total nucleotide strand concentration (Molar).