Table 2.
Photolytic regressive functions of rac-dufulin enantiomers in water (n=3)
|
Enantiomer |
pH |
Conc. (μg/mL) |
Regressive function |
Parameters (n= 3) |
ES valuea |
|
|---|---|---|---|---|---|---|
| R2 | t1/2(min) | |||||
|
S-(+) |
5 |
3.00 |
Ct = 2.8435 e-0.0097t |
0.9181 |
71.5 |
0.030 |
|
R-(−) |
Ct = 2.8860 e-0.0103t |
0.8973 |
67.3 |
|||
|
S-(+) |
7 |
0.30 |
Ct = 0.2534 e-0.0221t |
0.9467 |
31.4 |
0.058 |
|
R-(−) |
Ct = 0.2733 e-0.0248t |
0.9741 |
27.9 |
|||
|
S-(+) |
7 |
1.50 |
Ct = 1.2377 e-0.0146t |
0.9797 |
47.5 |
0 |
|
R-(−) |
Ct = 1.2477 e-0.0146t |
0.9817 |
47.5 |
|||
|
S-(+) |
7 |
3.00 |
Ct = 2.5561 e-0.0115t |
0.9769 |
60.3 |
−0.0044 |
|
R-(−) |
Ct = 2.5470 e-0.0114t |
0.9808 |
60.8 |
|||
|
S-(+) |
9 |
3.00 |
Ct = 2.4129 e-0.0045t |
0.9522 |
154.0 |
0 |
| R-(−) | Ct = 2.4014 e-0.0045t | 0.9325 | 154.0 | |||
aThe ES value is defined as the enantiomeric selectivity value.