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- The polarity of solvent disfavored the produce of triplet carbonyl compounds, restraining the CIDNP polarizations. 此外，强极性溶剂CD3CN不利于羰基化合物三线态的产生，因此从一定程度上抑制了CIDNP极化信号的产生。
- Keto-enol tautomerizing of ethyl acetoacetate was studied by UV.It was conformed that the content of enol ethyl acetoacetate decreased with the increasing polarity of solvents. 本文以紫外光谱为手段研究乙酰乙酸乙酯的酮-烯醇式互变异构现象;所得结果证实其烯醇式含量随溶剂极性的增加而减少。
- The Stokes shift of the compounds in solvents is longer than 87 nm, and it is also red-shifted when the polarity of solvents is increased, In DMF, the Stokes shift is over 100 nm. 都有较大的斯托克位移(>87nm),并且随着溶剂极性的增大而增大,在DMF中都达到100nm以上。
- Results showed that both NS and HNS have concentration quenching effect and the fluorescence spectrum exhibited a red shift with the increase in the polarity of solvents. 结果表明,化合物NS、HNS均存在浓度自猝灭效应,其荧光最大发射波长均随着溶剂极性增大而红移;
- Note the polarity of the voltage drop across R. 注意R上电压降的极性。
- The effect of solvent was investigated. 考察了溶剂对该类反应的影响。
- He got the polarity of the battery reversed. 他把电池两极弄反了。
- The three kind of solvent binders are chosen. 对不同类型的溶剂型粘合剂进行了优选。
- Wrong polarity of battery inset protected. 错装反装电池的电路保护设计。
- Another process modification is the use of solvent processing. 工艺的另一改革是采用溶剂工艺过程。
- Sum of the value of solvent and thinner in bracket thereafter. 将其后括号中各种溶剂及稀释剂得出的结果求和。
- polarity of solvent 溶剂极性
- The results showed that the distribution coefficient( D ) of benzoic acid depended on the polarity of the solvent in the ... 纯溶剂的物理萃取能力与溶剂的极性有关,极性越强,萃取能力越大;
- The effect of solvent polarity and guanidinium on the con-formation of carbonic anhydrase was studied by fluorescence emission spectrum. 以紫外荧光光谱为检测手段，比较研究了溶剂极性及盐酸胍对碳酸酐酶构象的影响。
- The invention changes the polarity of the extracting organic solvent, which makes the ganglioside be released almost fully into the solution. 本发明改变了提取有机溶剂的极性，神经节苷脂几乎全部释放到溶液中。
- Abstract : The effect of solvent polarity and guanidinium on the con-formation of carbonic anhydrase was studied by fluorescence emission spectrum. 摘要 ： 以紫外荧光光谱为检测手段，比较研究了溶剂极性及盐酸胍对碳酸酐酶构象的影响。
- The air reeked of solvents and exhaust fumes. 空气中充满了溶剂和废气的味道。
- The random conformation of PMALM blocks was verified by CD spectra and the linear relationship between the specific rotation and the polarity of CH_3OH/CCl_4 mixed solvent. 在CH3OH/CCl4混合溶剂中;共聚物比旋光度的绝对值随溶剂极性增大呈线性减小趋势;这一结果与CD一起证实了PMALM链段的无规卷曲结构.
- The two systems of government are polar opposites. 这两种政体正好相反。
- It is believed that a small polarity of the CNF surface leads to its higher wettability in a non-polar solvent such as cyclohexane than in polar solvent such as water. 不同的表面改性手段可对CNF的表面性质进行调变以控制其在不同溶剂中的润湿行为。
