SPME萃取頭(探針):
產(chǎn)品編號:9117006 DVB/CAR/PDMS三層復合手動探針(50/30 μm, 1 cm)
● 色譜條件
樣品:5 ml 陳酒樣品于20 ml 頂空瓶中
萃取溫度:50ºC;萃取時間:60 min;攪拌速度:500 rpm
解吸時間:2 min;解吸溫度:250℃
樣品進樣口:GC
進樣方式:手動
進樣口:250℃ 分流,分流比:10:1
色譜柱:DB-5ms, 30 m × 250 μm × 0.25 μm
程序升溫:起始溫度40℃,以2℃ /min升到100℃,再以4℃/min升到250℃,保持5 min
采集模式:全掃描,掃描范圍:35-450 m/z
離子源:230℃ ,MS 四極桿:150℃
● 檢測結(jié)果
陳酒中風味物質(zhì) SPME-GC/MS 檢測總離子流色譜圖
共檢測到40種有機化合物,其中包含8種醇、1種烷烴、7種酸、20種酯、2種酚、1種酮、1種肼,各自含量如下表所示。
檢測結(jié)果表明,18號化合物己酸乙酯含量最高,占總量的57.714%。
SPME-GC/MS 檢測結(jié)果
序號
|
化合物名稱
|
保留時間
|
峰面積百分比總量(%)
|
1
|
1-Propen-2-ol-acetate (1-丙烯-2-醇乙酸酯)
|
1.357
|
0.018
|
2
|
Ethyl acetate (乙酸乙酯)
|
1.682
|
0.634
|
3
|
3-Methyl-butanal (3-甲基-正丁醇)
|
1.88
|
0.135
|
4
|
Methyl-hydrazine (甲基肼)
|
2.067
|
3.299
|
5
|
Propanoic acid ethyl ester (丙酸乙酯)
|
2.236
|
0.022
|
6
|
2-Methyl-propanoic acid, ethyl ester
(2-甲基丙酸乙酯)
|
2.323
|
0.039
|
7
|
2-Pentanone (2-戊酮)
|
2.414
|
0.128
|
8
|
π-2-Butanol(π-2-丁醇)
|
3.006
|
0.027
|
9
|
Butanoic acid ethyl ester(丁酸乙酯)
|
3.263
|
2.778
|
10
|
π- 2-Methyl-butanoic acid ethyl ester
(π-2-甲基-丁酸乙酯)
|
3.485
|
0.038
|
11
|
3-Methyl-Butanoic acid ethyl ester
(3-甲基丁酸乙酯)
|
3.763
|
0.077
|
12
|
1,1-Diethoxy-3-methyl-butane
(1,1-甲氧基-3-甲基丁烷)
|
3.984
|
0.197
|
13
|
2-Methyl-1-propanol(2-甲基-1-丙醇)
|
4.412
|
0.119
|
14
|
2-Pentanol(2-戊醇)
|
5.043
|
0.178
|
15
|
Pentanoic acid ethyl ester(戊酸乙酯)
|
5.306
|
1.544
|
16
|
1-Butanol(1-丁醇)
|
5.645
|
0.072
|
17
|
3-Methyl-1-butanol(3-甲基-1-丁醇)
|
7.753
|
0.755
|
18
|
Hexanoic acid ethyl ester(己酸乙酯)
|
9.492
|
57.714
|
19
|
Heptanoic acid ethyl ester(庚酸乙酯)
|
13.344
|
1.552
|
20
|
Methoxyacetic acid, pentyl ester
(甲氧基乙酸戊酯)
|
13.48
|
0.15
|
21
|
1-Hexanol(1-己醇)
|
14.192
|
1.015
|
22
|
Octanoic acid ethyl ester(辛酸乙酯)
|
18.592
|
1.986
|
23
|
Isopentyl hexanoate(異戊己酸)
|
19.801
|
0.372
|
24
|
2-Hydroxy-4-methyl-pentanoic acid ethyl ester
(2-羥基-4-甲基 - 戊酸乙酯)
|
24.207
|
0.221
|
25
|
1-Octanol(1-辛醇)
|
25.179
|
0.074
|
26
|
Hexanoic acid hexyl ester(己酸己酯)
|
28.251
|
0.437
|
27
|
Butanoic acid(丁酸)
|
28.871
|
0.269
|
28
|
Decanoic acid ethyl ester(癸酸乙酯)
|
29.816
|
0.085
|
29
|
2-Methyl-hexanoic acid(2-甲基己酸)
|
31.117
|
0.055
|
30
|
Pentanoic acid(戊酸)
|
34.04
|
0.331
|
31
|
Benzeneacetic acid ethyl ester(苯乙酸乙酯)
|
35.431
|
0.466
|
32
|
Hexanoic acid(己酸)
|
38.033
|
20.943
|
33
|
Dodecanoic acid ethyl ester(十二烷酸甲酯)
|
38.187
|
0.306
|
34
|
Benzenepropanoic acid ethyl ester(苯丙酸乙酯)
|
38.687
|
0.235
|
35
|
2,6-bis(1,1-Dimethylethyl)-4-(1-methylpropyl)-phenol
(2,6-雙(1,1-二甲基乙基)-4-(1-甲基丙基)-苯酚)
|
40.486
|
0.065
|
36
|
Heptanoic acid(庚酸)
|
40.998
|
1.712
|
37
|
Octanoic acid(辛酸)
|
43.83
|
1.735
|
38
|
4-Methyl phenol(4-甲基苯酚)
|
44.136
|
0.035
|
39
|
Isopropyl palmitate(棕櫚酸異丙酯)
|
48.351
|
0.073
|
40
|
Hexadecanoic acid ethyl ester(十六烷酸乙酯)
|
48.588
|
0.112
|