Patent ID: 8364415

Claim:
A melting curve analyzing method for analyzing whether or not a peak is present in at least one of a relatively high predetermined temperature range (T H ) and a relatively low predetermined temperature range (T L ) in a melting curve of a sample, comprising: a step of providing differential values of signal values showing molten states of the sample at respective temperatures; a step of searching for a first peak candidate by searching using a computer for a signal differential value (A) having a maximum absolute value in the signal differential values at the respective temperatures as the first peak candidate; and a step of determining a first peak by determining that the signal differential value (A) is the first peak when a temperature (t 1 ) indicating the signal differential value (A) is included in a temperature range (T 1 ) that is either one of the temperature range (T H ) and the temperature range (T L ) and there is no peak when the temperature (t 1 ) indicating the signal differential value (A) is not included in either the temperature range (T H ) or the temperature range (T L ).