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1)  friedelan-4-α-methyl-3β-OH
friedelan4αmethyl-3β-OH
2)  hydroxyl radical
·OH
1.
After purification pretreatment by heating in air and concentrated HCl,single-walled carbon nanotubes(SWNTs) were treated with Fenton′s reagents to investigate the effect of hydroxyl radical(·OH) on the surface and structure of SWNTs.
单壁碳纳米管SWNTS(single-walled carbon nanotubes)经焙烧和浓盐酸纯化处理后,使用Fenton试剂对碳管进行化学改性处理,研究羟基自由基(·OH)对碳管表面和结构的影响,并运用红外光谱(FTIR)和拉曼光谱(Raman)进行了表征。
2.
The secondorder reaction rate constant between quinoline and hydroxyl radical was calculated as 6 65×10 9mol·(L·s) -1 .
研究O3 /UV降解自配喹啉水溶液时水体中存在的不同氧化剂对喹啉降解的相对重要性的结果表明 ,O3 和·OH是喹啉降解过程的主要氧化剂 。
3)  OH~- [英][əu]  [美][o]
OH-
1.
The Raman and infrared spectra of tellurite glasses were studied,and the influence mechanism of OH~-on upconversion luminescence of Er~(3+)-doped tellurite glasses was analyzed.
研究了碲酸盐玻璃的拉曼光谱和红外光谱,分析了OH-对掺Er3+碲酸盐玻璃上转换发光的影响机制。
2.
The effect of OH~- on the fluorescent properties of glasses were analyzed.
制备了Er3+/Yb3+共掺的70TeO2 5LiO2 (25 x)B2O3 xGeO2(x=0,5,10,15,20%(mol))系列锗碲酸盐玻璃,测试了其荧光光谱、红外吸收谱以及Er3+的4I13/2能级寿命,并根据McCumber理论计算了E3+能级中4I13/2→4I15/2跃迁的受激发射截面,讨论了OH-对此系列玻璃荧光特性的影响。
4)  OH
·OH
1.
The effect of OH radical on the radiation crosslinking of polydimethylsiloxane (PDMS) latex in the presence of various additives has been investigated based on the analysis of gel and sol fraction.
通过凝胶和溶胶分析的方法,研究了不同添加剂体系下,·OH 对聚二甲基硅氧烷乳液? 辐射交联的影响,结果表明,·OH 不仅可引发聚二甲基硅氧烷的交联,而且同时亦促进其降解。
5)  OH- [英][əu]  [美][o]
OH~-
6)  Δ~5-3β
Δ5-3β
1.
Aim To study the synthesis of Δ~5-3β,7β-dihydroxy sterols and Δ~5-3β,7α-dihydroxy sterols starting from Δ~5-3β-hydroxy sterols with different side-chains and their inhibitory activities against cholinesterase.
目的研究不同支链结构的Δ5-3β,7β-二羟基甾醇和Δ5-3β,7α-二羟基甾醇对胆碱酯酶的抑制活性。
补充资料:Methyl alcohol

    结构式为CH3OH,分子量32.04。无色澄清易挥发液体,相对密度(20 ℃/4℃)0.7914,凝固点-97.49℃,沸点64.5℃.闪点(开口)16℃,燃点470℃,折射率1. 3285,表面张力22.55×10-3N/m,蒸气压(20 ℃)12.265kPa,蒸气相对密度1.11,粘度(20 ℃)0.5945mPa·s,溶解度参数δ=14.8,能与水、乙醇、乙醚、丙酮、苯、氯仿等有机溶剂混溶,甲醇对金属特别是黄铜有轻微的腐蚀性。易燃,燃烧时有无光的谈蓝色火焰。蒸气能与空气形成爆炸混合物.爆炸极限6.0%-36.5%(vol)。纯品略带乙醇味,粗品刺鼻难闻。有毒可直接侵害人的肢体细胞组织.特别是侵害视觉神经网膜,致使失明。正常人一次饮用4一10g纯甲醉可产生严重中毒。饮用7-8g可导致失明,饮用30-100g就会死亡。空气中甲酵蒸气最高容许浓度5mg/m3

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