Biprobe peak profiles. (A) Peak profiles obtained with biprobe A. Peak 0 melted at 58°C, peak 1 melted at 52°C, and peak 2 melted at 50°C. (B) Peak profiles obtained with biprobe B. Peak 0 melted at 64°C, peak 1 melted at 60°C, peak 2 melted at 56°C, peak 3 melted at 58°C, peak 4 melted at 53°C, and peak 5 melted at 52°C. (C) Peak profiles obtained with biprobe C. Peak 0 melted at 68°C, peak 1 melted at 60°C, peak 2 melted at 56°C, and peak 3 melted at 54°C. (D) Peak profiles obtained with biprobe D. Peak 0 melted at 60°C, and peak 1 melted at 58°C.