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- Keywords chirality;optical rotation compounds;asymmetric synthesis; 手性;光学活性化合物;不对称合成;
- optical rotation compounds 光学活性化合物
- This RPR-FORS analysis established the theoretical and experimental basis for the integrated optical rotation sensor. 这种RPR-FORS为集成化的角速度传感器奠定了理论和实验基础。
- The final product zanamivir was verified by the data of 1H-NMR,MS and optical rotation. 经1H-NMR和MS及旋光度测定,本研究合成得到产物的结构与文献报道一致。
- The structure of the product was verified by optical rotation, melting point, IR, NMR and Elem Anal. 在本试验的操作条件下总收率达到26.;8%25。并用旋光度、熔点、红外、核磁及元素分析对产品结构进行了表徵。
- Some Mueller matrix elements present higher optical rotation as the concentration of glucose augments. 部分矩阵元表现出微弱的旋光效应，并且旋光度随葡萄糖浓度增大而增大。
- Appropriate physical constants such as melting range, boiling range, refractive index, dissociation constants( pK values), and optical rotation. 适当的物理常数，比如说熔程，沸程，折射率，离解常数(K值)旋光度。
- Optical rotation photometry and ultraviolet spectrophotometry were used to determine the content of L-glutamine and the composition soluble in water. 分别采用旋光光度法和紫外分光光度法测定L-谷氨酰胺和水溶性艹奥的含量。
- Since this mixture has a different optical rotation (levorotatory) from the original sucrose, the mixture is called invert sugar. 此混合物和蔗糖具有不同的旋光度，因此被称为转化糖。
- The study on acetoin crystallization dimer showed that the yield of acetoin-dimer was affected by the optical rotation of acetoin. 对乙偶姻二聚体结晶的研究表明,乙偶姻的旋光值对二聚体的结晶得率影响很大,旋光值越接近于零,结晶得率越高。
- METHODS : UV-spectrophotometry and optical rotation method were used to determine the content of ofloxacin and ephedrine hydrochloride respectively. 方法： 用紫外分光光度法和旋光法分别测定氧氟沙星和盐酸麻黄碱的含量；
- Conversion of a substance in which the direction of optical rotation is reversed,from the dextrorotatory to the levorotatory or from the levorotatory to the dextrorotatory form. 转化旋光度方向被反向，即以右旋形式到左旋形式或以左旋形式到右旅形式的变化过程中物质的变化。
- Conversion of a substance in which the direction of optical rotation is reversed, from the dextrorotatory to the levorotatory or from the levorotatory to the dextrorotatory form. 转化旋光度方向被反向，即以右旋形式到左旋形式或以左旋形式到右旅形式的变化过程中物质的变化
- Historically, polarimetry was performed using an instrument where the extent of optical rotation is estimated by visual matching of the intensity of split fields. 历史上，旋光测定法检测所使用的仪器中，旋光的程度是通过肉眼观察分离区域的亮度。
- The optical rotation detector was a perfect supplemental tool for chiral chromatography,which could provide the right information about dextrorotatory and levorotatory enantiomers. 与单纯的紫外检测器相比,旋光检测器可方便地得到手性对映体的左旋或右旋特性。
- The copolymers were characterized by elemental analysis.n.m. r.,viscosity and optical rotation measurements.The specific rotation of CA units in the copolymers was found to incre... 对共聚物用元素分析、核磁共振、粘度和旋光度测定等方法进行表征，发现在假定丙烯酰胺链节为非光活性的条件下共聚物中金鸡纳碱链节的比旋光度随聚合配方中金鸡纳碱含量的增加而增加。
- The glucuronides were then first methylated, then acetylated and optical rotations were tabulated. 葡萄糖醛酸甙然后首先甲基化，然后乙酰基化和旋光度做表。
- fiber optic rotation measurement 光纤转动测量
- All the physical properties should be identical except for the optical rotations of the two isomers (enantiomers), which are of opposite sign. 这两个异构体(对映体)除了旋光度有相反的符号之外，其它所有的物理性质都应该是完全相同的。
- Comparison of your results (boiling points, compositions, m.p., of semicarbazones, optical rotations) with literature values. 将你的结果(缩胺基脲的沸点，组份，熔点，旋光度)跟文献值比较一下。
