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- There were ten characteristic absorption bands in the HPLC chromatograms,which differed from the cortex of... 结论:本研究可为厚朴药材的良种选育与苗期鉴别提供参考。
- characteristic absorption band 特征吸收谱带
- And the resonance absorption band from 460nm to600nm becomes weak, too. 在pH4.;0 NaAc-HAc的缓冲溶液中，人血清白蛋白(HSA)在209nm处有一个吸收峰，在350nm处有一个荧光峰，其同步散射较弱。
- The suitable ultraviolet absorption band is selected via experiment. 通过实验研究选定检测紫外吸收波长。
- Moreover,the presence of Ce~(3+) impurity causes the absorption band at 306nm. 同时,杂质离子Ce3+的存在也导致晶体出现306nm的吸收带。
- Method: To make use of the methods of HPLC and NMR, and to establish the characteristic absorption spectrum. 方法:采用光谱学及色谱学方法,确定醇提取活性成分的HPLC和NMR的特征吸收图谱。
- As La ion exchange is about 80%, absorption band of the specific La cation-pyridine complex was observed. 当La交换度达80%25后,出现吡啶与La离子吸附络合物的吸收带。
- As a single crystal ithas large emission cross, wide absorption band, low threshold, high thermoconductivity. 具有大的受激发射跃迁截面，宽吸收带，低激光发射振荡阈值，高热传导率等特点。
- DMDHEU-treated vinylon appeared a characteristic absorption peak at 1,700 cm~(-1) in infra-red spectra, indicating chemical structure modification. 处理后的维纶在红外光谱中1700厘米~(-1)处出现特征吸收峰;表示化学结构的改变.
- The P(MMA-co-St) materials doped with mixed rare earth emit strong characteristic absorption of Re??3+? ion in ?746.5,?581,525 and 513 nm. 掺混合稀土的改性材料在746.;5;581;525和513nm处出现很强的Nd3+特征吸收;
- Excitation spectra show that there appears a strong absorption band of Ce3+, in addition to the original f-f transition sharp lines of Tb3+ or Dy3+. Ce~(3+)对Tb~(3+)和Dy~(3+)离子发光的敏化作用;
- It is found that adding triethanolamine and lanthanum nitrate to the analysis samples, the characteristic absorption of calcium increases times. 试验发现,加入三乙醇胺,以硝酸镧为释放剂,钙的特征吸收成倍增加,检测线性关系好,消除了基体干扰。
- The spectra of Si-oil which contaminated the mirror were measured. The infrared absorption band and absorption coefficient of Si-oil were obtained. 对被硅油污染的镜面进行了光谱测试,测得了硅油的红外吸收波段及吸收系数。
- Abstract : Bacterial ferritin from Azotobacter vinelandii has qualitative characteristic absorption peaksin the visible spectral region. 摘要 ： 棕色固氮菌细菌蛋白在可见光谱区中有定性的特征吸收峰。
- The calculated results show that the plasmon absorption band depends on both the size and shape of the gold noanoparticles. 计算结果显示,金纳米粒子的等离子体吸收带同时受到粒子尺寸和形状的影响,但来自形状的影响更为明显。
- But from the characteristic absorption bonds apices' appearance and disappearance, we cannot come to the conclusion that the heat imidization level has come to 100%. 但由相应吸收峰对比分析得知，热酰亚胺化的程度并没有达到100%25。
- Instead of forming peaks only some broadening of the absorption band was observed for the system composed of weak electron-acceptors and aromatic amines. 弱的电子受体使芳胺紫外吸收峰加宽,而强的电子受体如四氰基乙烯(TCNE)与芳胺作用产生的CTC显示新峰。
- The transmission spectrum and the absorption spectrum of alcohol shows that the characteristic absorption peak shifts with alcoholicity due to the molecular configuration. 通过对酒精透射光谱和吸收光谱的研究发现,其特征吸收峰随浓度不同发生漂移,从分子结构能级角度对其做了定性解释;
- Mg~(2+), which is required for carboxylation of PEP, induced a spectrum with a wide positive absorption band whose maximum is located at 275nm, and a negative peak at 237nm. Mg~(2+)产生的差光谱在275nm附近为正的阔峰,在237nm处为一负峰。
- The UV-Visible absorption band of 4. 5% Mo doped TiO2 reached to about 460 nm, the removal efficiency of methylene blue was 58. 3% , and TOC was 52. 5%. Mo6+掺杂的质量分数为4.;5%25时;样品的吸收带边可达460 nm;对40 mg/L亚甲蓝反应2 h的降解率为58
