Reproducibility of Retention Times
| Run no.Peak | Column 1 | Column 2 | Column 3 | Column 4 | ||||||||||||
| 1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | 1 | 2 | 3 | 4 | |
| 1 | 7.50 | 7.74 | 8.53 | 8.88 | 5.33 | 5.69 | 6.31 | 6.37 | 5.15 | 5.45 | 6.11 | 6.35 | 7.45 | 7.64 | 8.15 | 8.58 |
| 2 | 7.60 | 7.68 | 8.47 | 8.81 | 5.63 | 5.83 | 6.43 | 6.73 | 5.37 | 5.57 | 6.28 | 6.63 | 7.78 | 7.91 | 8.48 | 8.87 |
| 3 | 7.67 | 7.80 | 8.31 | 8.67 | 5.49 | 5.74 | 6.33 | 6.65 | 5.15 | 5.28 | 5.91 | 6.25 | 7.88 | 7.98 | 8.57 | 8.91 |
| 4 | 7.61 | 7.68 | 8.11 | 8.63 | 5.60 | 5.82 | 6.38 | 6.67 | 5.41 | 5.62 | 6.18 | 6.42 | 7.82 | 7.92 | 8.53 | 8.91 |
| 5 | 7.67 | 7.73 | 8.09 | 8.57 | 5.58 | 5.83 | 6.41 | 6.75 | 5.27 | 5.48 | 6.12 | 6.43 | 7.87 | 8.00 | 8.27 | 8.58 |
| 6 | 7.58 | 7.58 | 8.01 | 8.45 | 5.61 | 5.94 | 6.55 | 6.81 | 5.15 | 5.43 | 6.10 | 6.36 | 7.81 | 7.96 | 8.46 | 8.90 |
| Mean | 7.61 | 7.70 | 8.25 | 8.67 | 5.54 | 5.81 | 6.40 | 6.66 | 5.25 | 5.47 | 6.12 | 6.41 | 7.77 | 7.90 | 8.41 | 8.79 |
| SD | 0.06 | 0.07 | 0.22 | 0.16 | 0.11 | 0.09 | 0.09 | 0.15 | 0.12 | 0.12 | 0.12 | 0.13 | 0.16 | 0.13 | 0.16 | 0.16 |
| RSD | 0.83 | 0.97 | 2.62 | 1.81 | 2.05 | 1.48 | 1.34 | 2.32 | 2.26 | 2.17 | 1.99 | 1.98 | 2.07 | 1.68 | 1.95 | 1.87 |
[i] Reproducibility of retention times in minutes of the four heteroduplex peaks on a four-column array with four individual resistance ovens at an effective column temperature of 55°C over six runs. Experimental conditions as described in Figure 2b.