浓度(μmol/L)

12 h

24 h

36 h

48 h

0

0.983 ± 0.023

0.993 ± 0.042

1.020 ± 0.020

0.980 ± 0.026

2.0

1.023 ± 0.095

0.970 ± 0.044

0.980 ± 0.336

0.970 ± 0.04

4.0

0.997 ± 0.059

0.980 ± 0.040

0.953 ± 0.012

0.960 ± 0.027

6.0

0.957 ± 0.057

0.970 ± 0.010

0.983 ± 0.040

0.980 ± 0.060

8.0

0.980 ± 0.040

0.977 ± 0.015

0.997 ± 0.020

0.967 ± 0.032