时间(h)

L

a

b

ΔE

0

−5.5476

−0.4886

−1.1333

0

0.5

14.4613

−19.1003

−8.3327

28.2592

1

14.9560

−16.9383

−7.3123

27.0032

2

19.5439

−9.2364

−2.9623

26.6355

3

19.5233

−9.2455

−3.0265

26.6237

4

18.4353

−9.3724

−3.5190

25.6864

5

18.3435

−7.1667

−1.0891

24.8069

6

17.8386

−8.1102

−2.5969

24.6403

7

17.9319

−6.5763

−0.7891

24.2583

8

16.3391

−9.0476

−2.7926

23.5592

9

16.7737

−7.4054

−1.3107

23.3691

10

15.6105

−5.5313

−1.0352

21.7510