Chelator | a | k_{1} | b | k_{2} |
---|---|---|---|---|

EDTA | 0.7665 | −0.03692 | 0.7051 | 0.01164 |

Dipicolinic acid | 0.9554 | −0.0871 | 0.4551 | 0.00352 |

1-10-o-Phenanthroline | 1.9 | −0.003758 | 0.0001929 | 0.08838 |

↵

*a*The constants are those required to fit the data in Fig. 2 to equation 1. In all cases the sum of squares due to error was <0.004.