光谱测定的

Ray the average degree of polymerization of bamboo cellulose was determined by viscosimetry method and the crystalline structure were studied by infrared spectra and X ray diffraction respectively .

采用60Coγ射线对高聚合度的造纸用竹纤维素浆粕进行辐照处理，用铜氨溶液法测定辐照前后竹纤维素浆粕的平均聚合度，并采用红外光谱法及X射线衍射法研究其结晶结构的变化。

After irradiation by~(60)Co γ-ray,the average degree of polymerization of bamboo cellulose was determined by viscosimetry method,and the crystalline structure were studied by infrared spectra and X-ray diffraction,respectively.

采用60Coγ射线对高聚合度的造纸用竹纤维素浆粕进行辐照处理，用铜氨溶液法测定辐照前后竹纤维素浆粕的平均聚合度，并采用红外光谱法及X射线衍射法研究其结晶结构的变化。

The factors affect on the degree of substitution of product, yield and apparent viscosity, such as the mol rates of EPTAC with -NH2, reaction temperature, reaction time and the content of water in system have been discussed in detail. FTIR spectrometer and UV spectrometer are used to characterize the structure of the derivative and it is proved that substitution reaction mainly occurs on the -N element .The particle size and morphology of chitosan and quantemary ammonium salt of chitosan are analysised by comparing photos of their scanning electron microscope. The degree of substitution of HACC is determined by acid -base conductometric titration. An error in current formula of DS has pointed out and a correct formula has presented.On the base of experience of above experiment, the reaction conditions of HACC were systematically investigated through orthogonal design, and then the best conditions are found. Water-solubility and dependence of pH are studied.

壳聚糖和环氧丙基三甲基氯化铵在异相条件下发生反应，通过单因素实验，制备了一系列不同性能的壳聚糖季铵盐，本文首次详细讨论了反应条件(反应摩尔比、反应时间、反应温度、水含量)对产率及产物性能的影响；用红外光谱和核磁共振对结构进行表征分析时，发现季铵盐阳离子基以N位上取代为主；通过电镜图片对壳聚糖和季铵盐衍生物外观形貌进行对比，采用酸碱电导滴定法测定产物的取代度，并对常用取代度公式做了修正。

Fourier Transform Infrared and Horizontal Attenuated Total Reflectance techniques were used to obtain the FTIR of semen cuscutae (the seed from Cuscuta chinensis lam) and Japanese dodder seed (the seed from Cuscuta japonica Choisy). The similar features between the semen cuscutae and Japanese dodder seed are extracted by continuous wavelet transform.

采用水平衰减全反射傅里叶变换红外光谱法测定了同属种子植物中药材菟丝子及金灯藤的FTIR，运用基于连续小波多分辨率分析法对吸收较为相似的菟丝子及金灯藤的FTIR进行特征提取。

Objective To determine the content of blood strontium for diagnosis of deathful causes of drowning and postmortem submergence. Methods The content of Sr content in the water sample of Nan Du River on Hainan Province, and in the left heart's blood sample of rabbits died of drowning, postmortem submergence were determined with ICP-XSP. The results were compared with that the controls.

目的 研究动物溺水死后不同时间血锶的变化方法以高频电感偶合等离子体光谱分析仪检测外样水体中锶离子含量，并分别测定家兔溺死与死后入水的左心血的锶含量。

The absorbency changes of both thiol and vinyl functional group were monitored independently by FTIR spectrometer during vinyl silazane photopolymerizing with ethanedithiol, Based on the results,the kenitics of reaction was studied and the convertion of both thiol and vinyl functional groups were investigated.

采用傅立叶变换红外光谱法跟踪巯基和乙烯基吸光度的变化，跟踪测定了光聚合反应过程中巯基和乙烯基的转化率，研究了乙二硫醇/乙烯基硅氮烷体系的光聚合反应动力学。

We should set up the quick and accurate method of Hydrogenide generate-atom fluorescence spectrum for the determination of the trace Selenium elements content in Electrolytic Manganese, advance exit of Electrolytic Manganese.

建立氢化物发生－原子荧光光谱法测定低硒电解锰中微量硒的快速、准确的检测方法，促进低硒电解锰的出口。

Methods The conditions of solvent extracting active ingredient from pueraria lobata were optimized,and evaluating indIcators were contents of puerarin,lead and mercury, which were determined by high performance liquid chromatography and atomic fluorescence spectrometry.

方法采用高效液相色谱法和原子荧光光谱法测定葛根提取液中葛根素和铅、汞元素的含量，以葛根素和铅、汞元素的含量为评价指标，对影响溶剂回流提取葛根有效成分的条件进行优化。

Then mensurate their physical property and do elemental analysis ,infrared spectrum analysis to them .

依次测定了它们的物理性质，元素分析及红外光谱数据，并通过波谱数据表征了它们各自的构象，证实其确为目标产物，从而验证了此合成路线的可行性和可靠性。

A new method for simultaneous determination of multicomponent with spectrum transform single wavelength spectropotometry is presented.

提出了一种新的单波长法同时测定多组分的光谱变换分光光度法，并以苯甲酸和苯甲醛混合组分为例论证了该方法的可行性。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。