About infrared spectroscopy results of 491
25:18
25:15
19:19
16:20
27:32
13:53
17:55
40:06
37:31
89:54
20:33
23:43
24:45
16:45
44:17
17:30
19:43
19:44
16:20
17:28
18:59
18:35
17:48
16:18
20:11
40:15
59:27
19:31
25:28
18:45
22:48
41:55
18:24
18:58
21:15
19:10
22:08
23:49
64:13
209:44
51:55
33:36
34:28
29:08
49:39
82:27