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Table 2 Photolytic regressive functions of rac -dufulin enantiomers in water ( n =3)

From: Enantioselective hydrolyzation and photolyzation of dufulin in water

Enantiomer

pH

Conc. (μg/mL)

Regressive function

Parameters (n= 3)

ES valuea

 

R 2

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

 
  1. aThe ES value is defined as the enantiomeric selectivity value.