基于島津GC×GC系統的天然物樣品的檢測
天然物等樣品的基質多,通常的GC或GCMS難以分析。島津GC×GC系統在分析天然物等樣品時發揮出非凡能力。介紹以下應用實例,供您參考。
?礦物油芳香烴類(MOAH)的分析
?柑桔精油的GC×GC-MSMS分析
?馬黛茶的分析
?血漿中的脂肪酸分析
?咖啡的分析
通心粉的MOAH餾分的GCxGC-qMS色譜圖 (1st色譜柱:SLB-5ms(L=30m, i.d.=0.25mm, df=0.25µm), 2nd色譜柱:Supelcowax-10(L=1m, i.d.=0.1mm, df=0.10mu;m),調制時間:6sec) |
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No | 化合物名 | No | 化合物名 | No | 化合物名 | ||
1 | Isopropyldodecanoate | 2 | Dioctylether | 3 | 2-Ethylhexyl octanoate | ||
5 | Isopropyltetradecanoate | 9 | Methylhexadecanoate | 10 | Ethylhexadecanoate | ||
11 | Isopropylhexadecanoate | 12 | Abietatriene | 13 | Octyldodecanoate | ||
15 | Methyloctadecanoate | 16 | Dodecyloctanoate | 17 | n-Butylhexadecanoate | ||
18 | Octyltetradecanoate | 19 | Tetradecyloctanoate | 20 | n-Butyloctadecanoate | ||
22 | Octylhexadecanoate | 23 | Di(ethylhexyl) phthalate | 25 | Squalene | ||
26 | 1-Hexacosanol |
Q3掃描部分的柑桔精油的二維色譜圖和鑒定結果 |
No | 化合物名 | No | 化合物名 | No | 化合物名 |
1 | citronellal | 2 | terpinen-4-ol | 3 | α-terpineol |
4 | decanal | 5 | neral | 6 | geranial |
7 | perillaldehyde | 8 | thymol | 9 | linalool isobutyrate |
10 | α-copaene | 11 | dodecanal | 12 | methyl, N-methyl anthranilate |
13 | (E,E), α-farnesene | 14 | δ-cadinene | 15 | caryophyllene oxide |
16 | α-sinensal |
1ppm水平的內標IS(1,4-二溴苯), |
馬黛的GCxGC-qMS色譜圖 |
GCxGC定性分析一下與單GC定性分析一下的較好 | ||
檢出峰數 |
得到鑒定的峰數 |
|
GCxGC-MS | 1000往上 | 241 |
單GC-MS | 200 | 70 |
馬黛茶的GCxGC-qMS色譜圖和技術鑒定后果例 |
No | 化合物名 | No | 化合物名 | No | 化合物名 | ||
20 | 4-hydroxy-2-butanone | 30 | 5-methyl-3-methylene-5-hexen-2-one | 40 | alpha-pinene | ||
21 | methylpyrazine | 31 | 2-heptanone | 41 | 2-octanone | ||
22 | furfural | 32 | nonane | 42 | 2-heptenal, | ||
23 | isovaleric acid | 33 | 4-heptenal, | 43 | 2,2-dimethyl-3-heptanone | ||
24 | (2E)-hexenal | 34 | 2-butoxyethanol | 44 | 5-ethyl-2(5H)-furanone | ||
25 | 2-allylfuran | 35 | 2,4-hexadienal | 45 | 5-methyl furfural | ||
26 | (2Z)-hexenal | 36 | 2(5H)-furanone | 46 | benzaldehyde | ||
27 | furfuryl alcohol | 37 | gamma-butyrolactone | 47 | hexanoic acid | ||
28 | hexanol | 38 | pyrazine, 2,5-dimethyl- | 48 | 3-methyl-2(5H)-furanone | ||
29 | pentanoic acid | 39 | 2,7-dimethyloxepine | 49 | 1-octen-3-ol |
血漿中的脂肪酸甲酯的二維色譜圖 |
Peak | FAME | Peak | FAME | Peak | FAME | Peak | FAME |
1 | C8:0 | 18 | a-C19:0 | 35 | C18:2ω6 (st) | 52 | C22:4ω6 |
2 | C9:0 | 19 | C19:0 | 36 | C20:2 | 53 | C22:4ω3 |
3 | C10:0 (st) | 20 | C20:0 (st) | 37 | C20:2ω6 (st) | 54 | C24:4ω6 |
4 | C11:0 (st) | 21 | C21:0 (st) | 38 | C22:2ω6 (st) | 55 | C20:5ω3 (st) |
5 | C12:0 (st) | 22 | C22:0 (st) | 39 | C24:2ω6 | 56 | C20:5ω1 |
6 | i-C14:0 | 23 | C23:0 (st) | 40 | C18:3ω6 (st) | 57 | C21:5 |
7 | C14:0 (st) | 24 | C24:0 (st) | 41 | C18:3ω3 (st) | 58 | C22:5ω6 |
8 | i-C15:0 (st) | 25 | C14:1ω5 (st) | 42 | C18:3 | 59 | C22:5ω3 (st) |
9 | a-C15:0 (st) | 26 | C16:1ω7 (st) | 43 | C19:3 | 60 | C24:5ω3 |
10 | C15:0 (st) | 27 | C17:1ω7 (st) | 44 | C19:3ω6 | 61 | C24:5 |
11 | i-C16:0 (st) | 28 | C18:1ω9 (st) | 45 | C20:3ω6 (st) | 62 | C20:6ω1 |
12 | C16:0 (st) | 29 | C19:1 | 46 | C20:3ω3 (st) | 63 | C22:6ω3 (st) |
13 | i-C17:0 (st) | 30 | C20:1ω9 (st) | 47 | C22:3ω6 | 64 | C23:6 |
14 | a-C17:0 | 31 | C22:1ω9 (st) | 48 | C18:4ω3 | 65 | C24:6ω3 |
15 | C17:0 (st) | 32 | C24:1ω9 (st) | 49 | C20:4ω6 (st) | ||
16 | i-C18:0 | 33 | C16:2ω6 | 50 | C20:4ω3 (st) | ||
17 | C18:0 (st) | 34 | C17:2 | 51 | C21:4 |
阿拉比卡咖啡揮發成分的二維色譜圖 |
二維色譜圖所勾勒出的吡嗪的成分組 |