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- 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。
- 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。
- 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 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。
- 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。
- 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;
- 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。
- Aromatic terpenoids are dominant components in aromatic hydrocarbons and have the most content in the extracts and some conventional polynuclear aromatic hydrocarbons were also detected. 芳烃的主要组分是芳构化萜烷，其含量在萃取物中最高，还检出少量常规多环芳烃；
- pollution by polynuclear aromatic hydrocarbons 多环芳烃污染
- polynuclear aromatic hydrocarbons 多环芳烃
- polynuclear aromatic hydrocarbon 多核芳香烃
- Determination of Polynuclear Aromatic Hydrocarbons in Ambient Air 环境空气中多环芳烃类测定方法研究
- Test Method for Polynuclear Aromatic Hydrocarbons in Water 水中多环芳烃的试验方法
- The drink was mixed with aromatic spices. 饮料中带有香料。
- Aromatic herbs are often used in cooking. 芳草常用於烹调。
- Determination of polynuclear aromatic hydrocarbons in tissue samples 生物组织样品中微量多环芳烃的测定
