trang 3/3 Chuyển đổi dữ liệu 27.09.2016 Kích 0.5 Mb. #32461
Subtotal (%)
61.5
30.3
50.3
13.5
37.2
9.6
32.9
7.6
15.4
12.0
24.8
13.4
49.6
20.0
39.4
17.2
ALDEHYDES
552
MS, RI, CoI
1.89
Methyl propanal
nd
nd
nd
nd
tr
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
649
MS, RI, CoI
2.57
3-Methylbutanal
nd
nd
0.1
0.1
0.4
0.2
nd
nd
0.4
nd
1.4
tr
nd
nd
nd
nd
659
MS, RI, CoI
2.68
2-Methylbutanal
nd
nd
nd
nd
tr
nd
nd
nd
nd
nd
0.9
nd
nd
nd
nd
nd
965
MS, RI, CoI
9.97
Benzaldehyde
tr
tr
0.2
0.3
tr
tr
nd
0.2
1.7
2.1
tr
tr
nd
tr
nd
nd
1056
MS, RI, CoI
11.65
Phenyl acetaldehyde
nd
nd
nd
nd
nd
nd
nd
tr
nd
nd
nd
nd
nd
nd
nd
nd
Subtotal (%)
tr
tr
0.3
0.4
0.4
0.2
0.0
0.2
2.1
2.1
2.3
tr
0.0
tr
0.0
0.0
MISCELLANEOUS
485
MS, RI, CoI MS, RI, CoI
1.67
Diethyl ether
tr
nd
tr
3.7
tr
tr
tr
tr
tr
tr
1.1
tr
tr
tr
tr
tr
531
MS, RI, CoI
1.76
Dichloromethane
2.8
5.0
2.1
2.0
2.2
1.3
nd
nd
0.8
1.3
2.7
4.3
4.4
3.0
4.5
5.9
600
MS, RI, CoI
2.08
Hexane
3.5
nd
0.5
nd
tr
nd
tr
nd
tr
nd
nd
nd
3.5
nd
5.9
nd
615
MS, RI, CoI
2.20
Chloroform
nd
nd
1.3
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
773
MS, RI, CoI
4.78
Toluene
tr
nd
0.4
tr
tr
tr
tr
0.4
nd
nd
tr
nd
nd
nd
nd
nd
864
MS, RI, CoI
7.77
p -Xylene
nd
nd
tr
tr
tr
nd
nd
tr
nd
nd
nd
nd
nd
nd
nd
nd
1024
MS, RI, CoI
11.33
Limonene
tr
nd
0.4
tr
tr
nd
tr
tr
nd
nd
nd
nd
nd
nd
1.6
tr
1100
MS, RI, CoI
12.60
Undecane
nd
nd
nd
nd
nd
nd
tr
nd
nd
nd
nd
nd
nd
nd
nd
nd
1200
MS, RI, CoI
14.23
Dodecane
nd
nd
tr
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
1300
MS, RI, CoI
15.72
Tridecane
nd
nd
0.6
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
1400
MS, RI, CoI
17.01
Tetradecane
nd
nd
0.1
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
nd
Subtotal (%)
6.3
5.0
5.4
5.7
2.2
1.3
tr
0.4
0.8
1.3
3.8
4.3
7.9
3.0
12.0
5.9
Total (%)
93.6
103
93.3
60.9
56.1
99.6
91.6
87
84.7
82.4
74.4
84.3
87
73.1
90.5
69.5
Total number of identified compounds
(both PDMS and PA)
27
65
49
40
27
22
28
23
a EC1 and CC1, day1; EC2 and CC2, day 5; EC3 and CC3, day 20; EC4 and CC4, day 30; b Mean value of three independent measurements (both extraction and GC/MS); c Literature values of retention indices (NIST Chemistry Web Book); d MS – Identification based on mass spectra comparison , RI – estimated retention time (index)/order of elution and CoI-coinjection with an authentic standard ; e Microextraction was conducted using polydimethylsiloxane (PDMS) and f polyacryl (PA) fibers. g Broad peaks , with a pronounced tailing effect ; h nd-not detected ; i tr- trace compounds (less than 0.05% of the total peak area).Chia sẻ với bạn bè của bạn: