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- Good separations of polynuclear aromatic compounds, alkylbenzenes, basic aromatic compounds, halobenzenes as well as lovastatin and simvastatin were achieved. 实验证明这种交联聚合包覆固定相对有机流动相和碱具有高稳定性。
- polynuclear aromatic compound 多核芳香化合物
- Many constituents are mutagens and carcinogenic such as alkenes, nitrosamines, polynuclear aromatic and heterocyclic hydrocarbons, amines . 烟草的很多成分都会引起有机体突变以及致癌;如烯烃化合物;亚硝胺;多核芳香烃以及多环碳氢化合物和铵.
- Polynuclear Aromatic Hydrocarbons (PAHs) can be found in diverse areas of environment all over the world. 多环芳烃是一类广泛存在于环境中的有机污染物，有较强的致癌性。
- In some cases, they were either high-molecular-weight polymer or large aggregates of polynuclear aromatic molecules. 而积碳的性质极其复杂，它和形成的条件息息相关。
- To subject to a reaction that converts a substance into an aromatic compound. 芳构化使某物质经过反应转变为芳香化合物。
- AROMATIC COMPOUNDS: Structure and Reactions. 28芳香化合物：结构和反应。
- Although the contents of tar in overripe leaves were remarkably low, the release amount of polynuclear aromatic hydrocarbon was as much as that in mellow leaves. 过熟烤烟烟叶的焦油含量虽然较低，但烟气的稠环芳烃类化合物总量与适熟烤烟差异并不明显，其中苯并[a]芘含量有明显升高的趋势。
- Polynuclear aromatic hydrocarbons (PAHs) in particulate phases of the combustion products from liquefied petroleum oil gas and coal gas were determined. 色／质联机法鉴定了民用燃气（天然气、液化石油气和煤气）燃烧产物中半挥发性有机物，其主要成分为烷烃类化合物。
- Four different condensed polynuclear aromatic (COPNA) resins were obtained by reacting different heavy residue oils with 1,4-benzenedimethanol and p-toluenesulfonic acid. 摘要以四种不同的油浆为原料，在酸性催化剂存在下，与对苯二甲醇反应，得到四种COPNA树脂。
- The condensed polynuclear aromatic(COPNA)resin was synthesized by using coal tar pitch as monomer and trioxane as cross-linking agent in the presence of P-toluene sulfonic acid. 以煤沥青为原料、三聚甲醛为交联剂,在对甲苯磺酸的催化作用下合成缩合多环多核芳香烃(COPNA)树脂。
- Humic acids are usually regarded as polymers of aromatic compounds. 腐殖酸通常被看作是芳烃化合物的聚合物。
- The aromatic compound and its content of pomelo peel and 4 kinds of pomelo peel tea,and the scenting ... 文中对柚子皮和4种柚子皮茶的香气成分及其含量和窨制效果也进行了对比分析。
- Direct alkoxylation of aromatic compounds is virtually unknown. 事实上还不知道芳香族化合物的直接烷氧基化的方法。
- The condensed polynuclear aromatic (COPNA) resin was synthesized using coal tar pitch as monomer and terephthalic aldehyde as cross-linking agent in the presence of p-toluene sulfonic acid. 摘要以煤沥青为单体、对苯二甲醛为交联剂，在对甲苯磺酸的催化作用下合成缩合多核芳烃(COPNA)树脂。
- A white,crystalline,aromatic compound,C10H14O,derived from thyme oil and other oils or made synthetically and used as an antiseptic,a fungicide,and a preservative. 百里粉一种芳香的白色结晶化合物C10H14O，从百里油或其它油中提炼取得或人工合成，可用作消毒剂、杀真菌剂和防腐剂。
- The condensed polynuclear aromatic(COPNA) resin is synthesized using coal tar pitch as monomer and p-methyl benzaldehyde(PMB) as cross-linking agent in the presence of p-toluene sulfonic acid. 以煤沥青为单体、对甲基苯甲醛(PMB)为交联剂,在对甲苯磺酸的催化作用下合成缩合多核芳烃(COPNA)树脂。采用FT-IR和1H-NMR研究其反应机理;
- A white, crystalline, aromatic compound, C10H14O, derived from thyme oil and other oils or made synthetically and used as an antiseptic, a fungicide, and a preservative. 百里粉一种芳香的白色结晶化合物C10H14O，从百里油或其它油中提炼取得或人工合成，可用作消毒剂、杀真菌剂和防腐剂
- The condensed polynuclear aromatic (COPNA) resin is synthesized using coal tar pitch as monomer and p-methyl benzaldehyde (PMB) as cross-linking agent in the presence of ptoluene sulfonic acid. 摘要以煤沥青为单体、对甲基苯甲醛(PMB)为交联剂，在对甲苯磺酸的催化作用下合成缩合多核芳烃(COPNA)树脂。
- The result shows that some absorption parameter of aliphatic compoand and aromatic compound in the Metal electrode and their mole diopter have linearity relation. 研究表明,脂肪族及芳香族化合物在金属上的标准吸附自由能与它们的摩尔折射度成直线关系。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
