查询词典 octadecane

Alkane, such as Octadecane, Heptacosane, Nonacosane, Hentriacontane and Tetratriacontane, accounted for more than 75 % of the total removal of petroleum.

经过180d修复，结果表明，土壤石油污染物去除率达70.6％，去除速率达0.15g· kg^-1·d^-1，与自然条件相比，石油污染物半袁期由929d减少为103d。

Except n-octadecane and limonene, the response value of C.

二化螟雄虫对上述7种化合物的阈值为1ng/μl。

To study the law of preparing paraffin which be used in the phase-change thermostatic vavle, The samples were made by mixtures of eicosane and octadecane with different proportion. The samples were investigated by DTA analysis and measurement of melting point.

为研究应用在蜡式温阀中的感温石蜡的调配规律，使用十八烷与二十烷以不同比例进行混合，测量每组样品的熔点，再对样品进行DTA差热分析。

The cannas natural antistaling agent is separated by column separation methods and recrystallization. Fraction Ⅱ-2 is analyzed by GC-MS. Three compounds which are n-Octadecane, n- Heptacosane and Decanoic acid heptyl ester were identified.A new way of litchi preservation is provided in this paper.

本论文还对此美人蕉天然保鲜剂进行了分离研究，先对其乙醇提取物进行柱层析粗分，然后对组分Ⅱ进一步细分，对其中的组分Ⅱ-2进行了GC-MS分析，鉴定出3个物质，它们分别是正十八烷(n-Octadecane)、正二十七烷(n-Heptacosane)和癸酸庚酯。

Thermogravimetric analysis was extended to the measurements on vapor pressures of three n-alkanes, hexadecane, heptadecane and octadecane, on the basis of the Langmuir equation for zero-order vaporization process. The vapor pressures were calculated by two different methods, a constant-parameter one and a comparative one, from the TGA data. These results are in good agreement with the reference data calculated from the Antoine equation.

根据自由蒸发过程的Langmuir关系，将热重分析用于正十六烷、正十七烷和正十八烷等3个正构烷烃的蒸气压测定，分别采用常数法和比较法计算蒸气压，其结果与文献数据符合较好。

The fatty acids and waxes of Myrica rubra kernel were analyzed through GC-MS, The results showed that the yield of kernel oil was 31.10%, and there were eight fatty acids and three long-chain alkanes in the extracted composition. The main composition were Palmitic acid 28.22%, Linoleic acid 14.4%, Oleic acid 25.74%, Erucic acid 15.68%, Heptadecane 5.2%, Octadecane 5.87%, Nonadecane 4.71%. The total content of unsaturated fatty acid was 55.91% with the Linoleic acid and Oleic acid of 40.19%, these supplied a reference to its comprehensive utilization.

用GC-MS对杨梅核脂肪酸与蜡质成分进行了分析，结果表明：杨梅中脂肪酸和蜡质的总含量为31.10%，其中含有8种脂肪酸和3种长链烷烃，主要为棕榈酸(C16：0)28.22%、亚油酸(C18：2)14.4%、顺式-油酸(C18：1)25.74%、芥酸(C22：1)15.68%，十七烷5.2%、十八烷5.87%、十九烷4.71%，不饱和脂肪酸总含量为55.91%，其中油酸、亚油酸含量为40.19%。

In addition, the increase of MSM buffer capacity was also observed to help NTU-1 Rough form cell pellets when utilizing octadecane.

另外利用增加培养基缓冲能力的方式，可以有效地帮助NTU-1 Rough包覆正十八烷，形成菌块。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了