搜索结果: 1-5 共查到“理学 ASA”相关记录5条 . 查询时间(0.011 秒)
The spectral slope coefficient of chromophoric dissolved organic matter (S275–295)asa tracer of terrigenous dissolved organic carbon in river-influenced ocean margins
spectral slope coefficient chromophoric dissolved organic matter terrigenous dissolved organic carbon river-influenced ocean margins
2014/4/3
The present study demonstrates that the spectral slope coefficient of chromophoric dissolved organic matter(CDOM) between 275 nm and 295 nm (S275–295) can be used as a tracer of the percent terrigenou...
An efficient one pot synthesis of 1,4-dihydropyridines using alumina sulfuric acid (ASA) catalyst
Hantzsch 1 4-dihydropyridines ASA catalyst one pot conversion
2010/4/8
An efficient synthetic method for 1,4-dihydropyridines has been developed using 3 or 4 component condensation reactions of aldehydes, 1,3-dicarbonyl compounds, and ammonium acetate in the presence of ...
[Cr(III)(4-ASA)(en)2]Cl配合物的光化学活性
铬(III)配合物 光化学 DNA切割
2009/10/13
通过吸收光谱、荧光光谱、电导率和ESI-MS质谱等方法讨论了铬配合物[Cr(III)(4-ASA)(en)2]Cl (4-ASA: 4-aminosalicylic acid dianion, en: ethylenediamine)在不同温度、不同pH溶液中的稳定性及光化学稳定性. 实验表明, 该配合物的溶液(pH 7.4)在日光照射下发生了光化学取代反应, 取代产物为[Cr(4-ASA)(en...
采用2 ttg／mL微囊藻毒素一RR(MC—RR)、2 ttg／mL MC—RR + 0．5％ 二甲基亚砜(DMSO)和2 g／mL MC．RR +
2 mmol／L抗坏血酸(ASA)分别处理烟草悬浮细胞，研究上述各处理对烟草悬浮细胞活性氧(ROS)产生和抗氧化系
统的影响。结果表明，与对照相比，MC—RR单独处理后烟草悬浮细胞中ROS、膜脂过氧化产物丙二醛(MDA)和细胞
内源ASA的含量...