Table 2 Chromatographic performance data
Column | Parameter | Chlorobenzene | MMS | EMS | IMS | Remark |
|---|---|---|---|---|---|---|
Rtx-624 | Retention time (min) | 4.83 | 5.79 | 6.71 | 7.15 | Ideal peak shape |
No. of theoretical plates | 101708 | 190290 | 210354 | 148517 | ||
Tailing factor | 0.96 | 1.07 | 0.98 | 0.97 | ||
Resolution | – | 16.91 | 16.58 | 6.63 | ||
DB-5 | Retention time (min) | 4.77 | 5.80 | 6.65 | 6.98 | Unsymmetrical peaks |
No. of theoretical plates | 80486 | 75084 | 135201 | 108511 | ||
Tailing factor | 1.01 | 2.74 | 0.74 | 3.38 | ||
Resolution | – | 14.8 | 10.9 | 5.8 | ||
DB-1 | Retention time (min) | 4.85 | 5.90 | 6.83 | 7.25 | Unsymmetrical peaks |
No. of theoretical plates | 110932 | 92035 | 157181 | 105789 | ||
Tailing factor | 0.94 | 2.81 | 1.24 | 3.55 | ||
Resolution | – | 15.3 | 15.8 | 6.1 | ||
DB-624 | Retention time (min) | 4.83 | 5.79 | 6.71 | 7.16 | Unsymmetrical peaks and low sensitivity for IMS |
No. of theoretical plates | 117254 | 191748 | 196673 | 62078 | ||
Tailing factor | 0.90 | 1.04 | 0.95 | 0.76 | ||
Resolution | – | 17.48 | 16.32 | 5.11 |