It is found that there are good relationships between the fundamental frequencies and the structural properties of straight-chain alkanes, and between the sum-frequencies and the additivity properties of straight-chain alkanes as well.

將直鏈烷烴分子看成是一個多自由度振動系統(tǒng)，用機械振動理論中的傳遞矩陣法計算了 C2~C32直鏈烷烴的固有頻率国产偷窥熟女精品视频大全小说，分析了固有頻率隨化合物結(jié)構(gòu)單元的變化規(guī)律。

Using GC/C/MS on-line carbon isotope analysis technique, we obtained the stable carbon isotope ratios of n-alkanes, iso-alkanes from the light hydrocarbon compositions and pristane, phytane in crude oils in Tarim basin.

本文利用新興的原油單體烴類在線同位素分析技術(shù)測定了塔里木盆地原油及凝析油的正構(gòu)烷烴、輕烴部分的異構(gòu)烷烴和植烷色色大综合、姥鮫烷的穩(wěn)定碳同位素值日本香港三级三级久久妇。

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℃熱模擬產(chǎn)物飽和烴餾分中除檢測出兩種長鏈烯烴外，還檢測到正十九碳單烯烴欧美一级A一级a爱片牲交高清、正三十五碳雙烯烴、兩個碳二十八甾烯的同分異構(gòu)體和三個C〓類異戊二烯烷烴化合物同分異構(gòu)體99热这里只有精品最新首页。300℃模擬產(chǎn)物飽和烴主要為正烷烴午夜精品在线，正烷烴的碳數(shù)分布范圍為C〓-C〓，以C〓為主峰欧洲AV在线不卡、C〓為次主峰；另外人人看人操，樣品中還檢出姥鮫烷禁止18周岁以下观看网站、植烷和C〓甾烷等化合物。400和500℃熱模擬產(chǎn)物中的飽和烴含量下降A片在线观看视频免费网站，正烷烴系列碳數(shù)分布范圍變窄，主峰碳后移至C〓色色ww，檢測到低濃度的C〓-C〓甾烷系列化合物日a在线网址，另外曰韩精品欧美精品，C〓-C〓藿烷系列化合物含量進一步增加。

Based on GC and GC-MS analyses, the geochemical characteristics of these typical deep viscous oils are listed as follows:(1) strong preference of even n-alkanes over odd n-alkanes;(2) strong preference of phytane over pristane, i. e. Pr/Ph ratio＜＜1;(3) high abundance of gammacerane relative to C〓hopanes;(4) much more amounts of C〓 pentakishomohopanes than C〓 tetrakishomohopanes and even C〓 trishomohopanes.

羅家—墾西地區(qū)稠油飽和烴色譜、色譜-質(zhì)譜分析結(jié)果展示：(1)正構(gòu)烷烴具有明顯的偶奇優(yōu)勢人人射人人操人人爽；(2)類異戊二烯烷烴具有較強的植烷優(yōu)勢永久变态另类AV天堂，姥姣烷/植烷比值遠小于199re国产在线精品最新66；(3)伽瑪蠟烷相對含量(相對于C30藿烷)普遍很高；(4)C35升藿烷明顯高于C34青青女在线被干视频、甚至C33升藿烷国产特黄二级A片免费着；表現(xiàn)出膏鹽湖相生物標志物的組成特征。

We use this technology to measure some rock and oil sample taken from Liaohe or Tarim basin. We identified many series of biomarker with dividing-era significance. These series are C26 steranes, C30 methylsteranes; and methly hopanoid alkanes, hexacyclic hopanoid alkanes, which two series were measured first by our laboratory in China.

本論文建立地球化學(xué)樣品GOMS／MS分析方法农村黄色网站；并對遼河盆地和塔里木盆地巖石及原油樣品進行GC／MS／MS分析91精品久久久久久久久久，鑒定出多個系列具有劃時代意義的生標組分狼友视频网址一网址二，這些組分是用GC／MS技術(shù)無法檢測的極微量的生標組分：C26降膽甾烷系列、C30甲基甾烷系列等：還有高碳數(shù)甲基藿烷系列和六環(huán)藿烷系列見圖1农村一级强奸少妇大毛片，圖2，在國內(nèi)被我們實驗室首次檢出国产呦系列精品视频。

By means of GC-MS-Ms method, the multiple series of age-related and taxon specific biomarkers are tested in source rocks and oil samples from Liaohe oilfield and Tarim basin, which are hard to be detected by conventional GC-MS method. They are steranes, methylsteranes, Tricyclic and tetracyclic diterpanes, methyl hopanoid alkanes and hexacyclic hopanoid alkanes, etc.

利用色譜－質(zhì)普－質(zhì)普方法在遼河與塔里木盆地源巖和原油樣品中色欲色香天天天综合视频在线观看，檢測出了多個系列時代相關(guān)及特定種屬生物標志物www.free性亚洲，包括：降膽甾烷系列、甲基甾烷及甲藻甾烷系列福利视频自拍、三環(huán)二萜烷及四環(huán)二萜烷系列、六環(huán)蒮烷及甲基藿烷系列等等黄色视频你懂得在线观看，這些化合物很難用常規(guī)GC-MS形方法檢測到。

Master the structures, isomers, conformations, namenclature of alkanes; alkyl groups, homology; physical and chemical properties of alkanes, radical reaction; namenclature of cycloalkanes, cis-trans isomerism in cycloalkanes; chemical properties of cycloalkanes.

掌握烷烴的結(jié)構(gòu)少妇被又大又粗又猛烈的来回进出，構(gòu)造異構(gòu)三级片观看网址，構(gòu)象，系統(tǒng)命名一级A一片久久无码；烷基、同系物美女破处视频两人啪啪啪；烷烴的化學(xué)性質(zhì)，自由基反應(yīng)日韩一区,国产二区,欧美三区；脂環(huán)烴的命名特黄AAAAA级作爱片，順反異構(gòu)；化學(xué)性質(zhì)91看电影亚洲精品。

The process of alkanes transport into cells and the effect of transport selectivity on priority of different alkanes in hiodegradation were studied.

研究了烴的跨膜傳輸過程以及該過程的選擇性對細菌降解偏好性的影響在线一区免费不卡。

Furthermore, these processes have low selectivities but high product costs. In the industrial production, the technologies of alkanes'activation are mainly making the alkanes transform to petrol-chemical products directly with the help of transition metal catalyzers.

在工業(yè)生產(chǎn)方面欧美性爱资源网，烷烴活化技術(shù)主要是用過渡族金屬催化劑將比較便宜的烷烴原料直接轉(zhuǎn)變?yōu)槭a(chǎn)品，尋找低溫高活性欧美最猛性XXXXX69、高選擇性、穩(wěn)定性好亚洲精品中文字幕区、抗積炭能力強的工業(yè)化催化劑，一直是實驗研究的熱點日韩孕妇自拍视频网站大全免费观看，過渡金屬催化劑在烷烴的活化研究中扮演著重要的角色。

We used a Mode l PS-1 PUF Sampler (Graseby GMW, Village of Cleves, OH, USA) to collect samples of total suspended particulate and n-alkanes in the gas phase. Particles were collected on quartz fiber filters. Gaseous n-alkanes were adsorbed by PUF and XAD-2 in a cartridge placed downstream of the filter holder in the sampler.

本研究使用Model PS-1 PUF采樣器，以石英纖維濾紙收集總懸浮微粒五月天无码视频，并在濾紙下游以 PUF及XAD-2吸附氣相中的半揮發(fā)性有機成分。