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In addition nC〓, nC〓, two isomers of C〓 sterene and three isomers of C〓 isoprenoid hydrocarbons were also identified from aliphatic fraction of pyrolyzed product at 200℃. After pyrolyzed at 300℃, the main aliphatic hydrocarbons were normal alkanes ranged from C〓 to C〓, with C〓 as the main peak and C〓 as the second main peak. Meanwhile, pristane, phytane and C〓 sterane were also detected. In the pyrolysates at 400℃ and 500℃, the content of saturated hydrocarbons decreased, the range of normal alkanes distribution became narrow and the main peak was nC〓. Low concentration of C〓-C〓 steranes was detected and the content of C〓-C〓 increased more.
在200℃热模拟产物饱和烃馏分中除检测出两种长链烯烃外,还检测到正十九碳单烯烃、正三十五碳双烯烃、两个碳二十八甾烯的同分异构体和三个C〓类异戊二烯烷烃化合物同分异构体。300℃模拟产物饱和烃主要为正烷烃,正烷烃的碳数分布范围为C〓-C〓,以C〓为主峰、C〓为次主峰;另外,样品中还检出姥鲛烷、植烷和C〓甾烷等化合物。400和500℃热模拟产物中的饱和烃含量下降,正烷烃系列碳数分布范围变窄,主峰碳后移至C〓,检测到低浓度的C〓-C〓甾烷系列化合物,另外,C〓-C〓藿烷系列化合物含量进一步增加。
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They were acetic acid, benzaldehyde, n caproic acid, methyl pentadecanoic methyl ester, glycerin, benzoic acid,,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.
它们是乙酸、苯甲醛、正葵酸、-甲基十五烷酸甲酯、丙三醇、苯甲酸、,9-十八碳二烯酸甲酯、角鲨烷、硬脂酸和二十烷基油酸酯。
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The strain TV9704 does not use dodecane,hexadecane,liquid paraffin,diesel and naphthalene as carbon source and energy for its growth,therefore the oil consumption value was not obviously decreased;comparatively,thiophene or dibenzothiophenewas the only carbon source,sulfur source and en...
这一菌株不能以正十二烷、正十六烷、液体石蜡、萘和柴油为碳源和能源生长,因此不会明显地损失石油的燃烧值;但它能利用噻吩或二苯并噻吩作为唯一硫源来生长。
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The results showed that the unsaturated fatty acid content of pecan kernel oil was 89 0%,and 13 kinds of unknown components such as nonadecaol,8 hexyl pentadecane,10 methyl eicosane,11,14 eicosadienoic acid,1 bromo 8 heptadecyne,9 hexyl heptadecane,tetracosane,13 docosenoic acid,1 bromo 7 nonadecyne,15 tetracosenoic acid,hexacosanoic acid,7 hexyl ei...
研究结果表明:山核桃仁油中的不饱和脂肪酸 w =89 0 %,未知成分是十九醇、8 己基十五烷、10 甲基二十烷、11,14 二十碳二烯酸、1溴 8 十七炔、9 己基十七烷、二十四烷、13 二十二碳烯酸、1 溴代 7 十九炔、15 二十四碳烯酸、二十六酸、7 己基二十烷、二十七烷共 13种,其中13 二十二碳烯酸、15 二十四碳烯酸、十九醇等具有较强的生理活性和药用价值
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The main components were myristic acid (19.37%), palmitic acid methyl ester(7.56%), lascorbic acid 2,6dihexadecanoate(6.27%), 8,11octadecadienoicacid methyl ester(5.22%), heptadecane(4.82%), lauryl ethoxylate(2.98%), 2isopropyl5methyl1heptanol (2.62%), tetracosanoic acid methyl ester(2.12%),2ethyl2methyltridecanol (2.08%), et al.
其化学成分主要为肉豆蔻酸(19.37%),棕榈酸甲酯(7.56%),2,6十六烷基1抗坏血酸酯(6.27%),8,11十八碳二烯酸甲酯(5.22%),十七烷(4.82%),十二烷基乙氧基醚(2.98%),2异丙基5甲基1庚醇(2.62%),二十四烷酸甲酯(2.12%),2乙基2甲基十三醇(2.08%)等。
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SM6 and SM7 of uncrystal were analyzed through GC-MS, the results showedthat SM6 main contained unsaturated fatty aldehyde with fragrance, i.e.-2,4-decadienal(58%), tetradecanoic acid (55.78%), 2-decenal(50%), Phthalic acid isobutylundecyl ester(47%), 2, 4-Decadienal(41%), 2-Undecenal (31%), 2-Methyl-Z,Z-3, 13-octadecadi-enol(18.84%), and SM7 contained saturation alkanes, i.e. 1, 2-Benzenedicarboxylic acid, butyl cyclohexyl ester(23.90%), Triacontane(22.63%),Nonacosane(21.04%), Heptadecane(18.84%), Octacosane(13.58%). Toxicological experiments were done to insure the pigment safety.
并对紫红丝膜菌色素非晶体部分的黄色油状物SM6和紫色粉末物SM7作了GC-MS分析,结果显示SM6中主要为具有香气成分的不饱和脂肪醛,其中含量较高的依次为:-2,4-癸二烯醛(58%)、十四烷酸(55.78%)、2-癸烯醛(50%)、邻苯二甲酸异丁基十一烷酯(47%)、2,4-癸二烯(41%)、2-十一碳烯醛(31%)、2-甲基-Z,Z-3,13-十八碳二烯酸(18.45%)等;SM7中主要为饱和直链烷烃,其中含量较高的依次为:1,2-苯二羧酸丁基环己酯(23.90%)、三十烷(22.63%)、二十九烷(21.04%)、十七烷(18.84%)、二十八烷(13.58%)。
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With intermediates 1,ω-hexadecanediol and ω-bromo pentadecanol as starting materials,ω-bromo hexadecanoic acid and ω-bromo octadecanoic acid were prepared in four and seven steps of reactions separately.
分别以1,ω-十五烷二酸和1,ω-十六烷二酸为原料,各经过四步有机反应,制备了ω-碘代十六烷酸及含十四、十五、十六碳原子的ω-溴代直链脂肪酸;再以中间产物15-溴代十五烷醇、1,ω-十六烷二醇为原料,各经过四步、七步有机反应,制备了ω-溴代十六烷酸及ω-溴代十八烷酸。
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Result 16 kinds of fatty acids were separated from Anak chicken muscle and identified. Among them, 7 kinds fatty acids, including lauric acid, myristic acid, pen-tadecanoic acid, palmitic acid, margaric acid, stearic acid and eicosanoic acid, were saturated fatty acids and its content accounted for 38.55% of the total fatty acids; 9 kinds fatty acids, including 11-teteadecenoic acid, 9-hexadecenoic acid, 9-vaccenic acid, 9,12-octadecadienoic acid, 6,9,12-octadeca-trienoic acid, 11-eicosenoic acid, 10, l3-eicosenoic acid, 7,10, 13-eicosatriennoic acid and 5,8,11,14-arachidonic acid, were unsaturated fatty acids, and its content accounted for 61.45% of the total fatty acids.
结果]安卡鸡肌肉中共分离和鉴定出16种脂肪酸,其中饱和脂肪酸7种,包括月桂酸、豆蔻酸、十五烷酸、棕榈酸、十七烷酸、硬脂酸和花生酸,其含量占总脂肪酸的38.55%;不饱和脂肪酸9种,包括11-十四碳烯酸、9-十六碳烯酸、9-十八碳烯酸、9,12-十八碳二烯酸、6,9,12-十八碳三烯酸、11-二十碳烯酸、10,13-二十碳二烯酸、7,10,13-二十碳三烯酸以及5,8,11,14-二十碳四烯酸,共含量占总脂肪酸的61.45%。
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CNTs were first pre-treated using acid solution (HNO3) to obtain CNTs functionalized with carboxylic groups. Subsequently, the stearyl alcohol was grafted onto CNT with the assistance of dehydrating agent, N,N'-dicyclohexyl-carbodiimide. Excellent dispersion in organic solvents such as acetone, THF, and chloroform was found for the modified CNTs (CNT-C18). In addition, the PBS/CNTs nanocomposites were then prepared through simple melt-blending. Mechanical properties, thermal behavior, conductivity of resultant polymer/CNT composites were investigated. The results show that excellent dispersion of nanotubes in the PBS matrices was achieved.
为了增加多壁奈米碳管在复合材料中的分散性,将碳管表面进行化学修饰,首先将多壁奈米碳管浸入HNO3溶液中,进行酸化,使碳管表面带有羧酸的官能基,然后再加入十八烷醇,在温和的条件下,藉由N,N'-二环己基碳二亚胺(N,N'-dicyclohexyl- carbodiimide,DCC)脱水剂脱水,使碳管和十八烷醇之间产生酯基的化学键结,改质后的碳管可以分散在acetone、THF、chloroform…等有机溶剂中,结果显示成功的利用DCC脱水剂完成碳管的改质。
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Results Eleven compounds were obtained and identified as sarcodonin A, scabronine B, 3β-hydroxy-5α, 8a-epidioxyergosta-6, 22-dien,(22E, 24R)-ergosta-7, 22-diene-3β, 5α, 6β-triol,(22E, 24R)-ergosta-7, 22-diene-3β-ol, benzoic acid, 4-hydroxylben-zaldehyde, 4-monopropanoylbenzenediol, ethy1-β-D-glucopyranoside, thioacetic anhydride,(2S, 2'R, 3S, 4R)-2-(2-hydroxyoctadecanoylamino) docosane-1, 3, 4-triol.
结果共分离鉴定了11个化合物,分别是:sarcodonin A、scabronine B、3β羟-5α,5α-过氧麦角甾-6,22-二烯-3β-醇、(22E,24R)-麦角甾-7,22-二烯-3β,5α,6β三醇、(22E,24R)-麦角甾-7,22-二烯-3β-醇、苯甲酸、对羟基苯甲醛、对羟基苯甲酸乙酯、乙基-β-D-吡喃葡萄糖苷、硫代乙酸酐、(25,2'R,3S,4R)-2-(2-羟基-十八碳酰胺)二十二碳烷-l,3,4-三醇。
- 更多网络解释与二十碳烷相关的网络解释 [注:此内容来源于网络,仅供参考]
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Behenic acid methylester:山嵛酸甲酯/二十二碳烷酸甲酯
Bavachinin A 甲基补骨脂黄酮A | Behenic acid methylester 山嵛酸甲酯/二十二碳烷酸甲酯 | Behenic acid 山嵛酸/二十二碳烷酸
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dodecanoic acid:十二(烷)酸
dodecadienoic acid 十二碳二烯酸 | dodecanoic acid 十二(烷)酸 | dodecenoic acid 二十碳烯酸
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eicosane:二十碳烷
eggnucleus卵核 | eicosane二十碳烷 | eicosanoicacid二十(烷)酸
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heneicosane:二十一烷
hendecyne 十一碳炔 | heneicosane 二十一烷 | heneicosanoic acid 二十一烷酸
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hexacosane:二十六烷(得自树脂)
hexacosandienoic acid 二十六碳二烯要酸 | hexacosane 二十六烷(得自树脂) | hexacosapentaenoic acid 二十六碳五烯酸
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nonadecane:十九(碳)烷
nonadecadienoicacid十九碳二烯酸 | nonadecane十九(碳)烷 | nonadecanoicacid十九(烷)酸
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pentacosane:二十五碳烷
氯化天竺葵色素苷 Pelargonin chloride | 二十五碳烷 Pentacosane | 十五烷酸 Pentadecanoic acid
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Stearyl Alcohol:十八烷醇
为了增加多壁奈米碳管在复合材料中的分散性,将碳管表面进行化学修饰,首先将多壁奈米碳管浸入HNO3溶液中,进行酸化,使碳管表面带有羧酸(-COOH)的官能基,然后再加入十八烷醇(Stearyl alcohol),在温和的条件下,藉由N,N'-二环己基碳二亚胺(N,
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tetradecanoic acid:十四(烷)酸
tetradecadienoic acid 十四碳二烯酸 | tetradecanoic acid 十四(烷)酸 | tetradecenoic acid 十四碳烯酸(存在于鱼油中的一种不饱和脂肪酸)
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undecandioic acid; undecane diacid:十一烷二酸
十一碳二烯酸 undecandienoic acid | 十一烷二酸 undecandioic acid; undecane diacid | 十一烷 undecane; hendecane