A^{*} | C^{*} | G^{*} | T^{*} | T^{†} | U^{*} | 84 K^{‡} | 300 K^{‡} | 450 K^{‡} | 600 K^{‡} | 700 K^{‡} |
---|---|---|---|---|---|---|---|---|---|---|

1.1 | 1.6 | 1.1 | 2.8 | 2.4 | 2.1 | 1.1 | 1.2 | 1.1 | 1.6 | 1.5 |

1.0^{§} | 1.33^{§} | 1.0^{§} | 2.5^{§} | 2.5 | 2^{§} | 1.0^{§} |

Shown are the expected theoretical ratios from the chemical formulae.

↵* From ref. 16.

↵† Calculated from a fresh thymine sample analyzed using a Phi XPS double-pass CMA machine. Correction factors were as follows: C, 0.296; O, 0.711; and N, 0.477 [from Phi Handbook (22)].

↵‡ From Fig. 2.

↵§ Theoretical ratios.