Table 1: Data from the Scatchard equation on the interaction between thulium(III)-arsenazo III complex and DNA.

CurvecThulium(III)-arsenazo III/cDNANaCl (mol/L)Scatchard plot valuesK (L/mol)

a0.000.00r/c = 1.99 × 104 – 1.05 × 107 r1.05 × 1070.00169
0.05r/c = 4.23 × 104 – 1.28 × 107 r1.28 × 1070.00207

b0.200.00r/c = 2.35 × 103 – 8.63 × 106 r8.63 × 1060.00027
0.05r/c = 1.24 × 104 – 8.58 × 106 r8.58 × 1060.00122

c0.400.00r/c = 2.61 × 104 – 6.01 × 106 r6.01 × 1060.00404
0.05r/c = 9.14 × 103 – 9.93 × 106 r9.93 × 1060.00082

d0.600.00r/c = 2.85 × 104 – 5.62 × 106 r5.62 × 1060.00420
0.05r/c = 1.74 × 104 – 1.04 × 107 r1.04 × 11070.00149