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特征吸收峰
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  characteristic peaks
    FTIR Spectroscopy testify: maize starch-acrylamid has the characteristic peaks of maize starch and AM, St-Am graft copolymerization is success.
    红外光谱法证明淀粉接枝丙烯酰胺既具有玉米淀粉的特征吸收峰,又具有丙烯酰胺单体的特征吸收峰,表明淀粉与丙烯酰胺单体接枝成功。
短句来源
  “特征吸收峰”译为未确定词的双语例句
    In the study on polymer microstructure ,the microstructure content of homopolymer at the same temperature and TMEDA/Li was used to characterize microstructure content of I-Bd and I-St-Bd copolymer for the first time.
    在聚合物的微观结构研究中,首次采用了相同温度、相同TMEDA/Li下均聚物的微观结构含量表征共聚物微观结构含量的方法,解决了Bd-I和St-I-Bd共聚物中各微观结构特征吸收峰相互干扰的矛盾。
短句来源
    The ultraviolet spectrum of the xylan sulphate showed newabsorption at 282nm. The infrared spectrum of it showed intensive absorption at1256cm-1 and 814 cm-1 attributed to the stretching of S=O bond and C-O-S bonds onthe sulfate ester of the hexose respectively.
    通过紫外光谱分析发现wisX-S6在282nm处有新的特征吸收峰,红外光谱分析发现在波数1256cm~(-1)和814 cm~(-1)处分别出现S=O和C-O-S键的特征吸收峰
短句来源
    SPSP which was synthesized by chlorosulfonic-pyridine method has UV and IR absorption of sulfate group, and the content of sulfate group is 21.22% by the method of barium sulfate turbidity.
    应用氯磺酸-吡啶法对PSP进行硫酸酯化修饰,修饰后的产物SPSP红外和紫外图谱均显示有硫酸基团的特征吸收峰,氯化钡-明胶法测定其硫酸根含量为21.22%。
短句来源
    Results of XRD and FT-IR analysis indicate that ZrO_2 catalyst is noncrvstallinewith three characterizing absorption peaks located at 1050 cm ̄(-1)、1130 cm ̄(-1) and 1220cm ̄(-1)。
    FT-IR表明,ZrO_2催化剂具有超强酸的3个特征吸收峰,即1050、1130和1220cm ̄(-1)。
短句来源
    IR showed that the absorption peak of sugar and protein.
    红外吸收光谱分析(IR),具有多糖及蛋白质的特征吸收峰
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  characteristic peaks
The main characteristic peaks in these transient absorption spectra were attributed and the growth-decay trends of several transient species were investigated.
      
The ETA curves exhibit characteristic peaks corresponding to regeneration and annealing of both natural structural defects and those appearing after the external treatment of the sample.
      
It is shown that the significant decrease in the reflectance in the spectral range from 200 to 900 nm and the red shift of the characteristic peaks in the reflection spectra are related to the sizes of nanocrystallites in the films formed.
      
XPS analysis revealed that along with increasing in coating amount, the strength of the characteristic peaks of Au increased, and the Auger peaks of Fe weakened and even disappeared.
      
The characteristic peaks of IR from the C=O are about 1713.9, 1712.2 and 1710.8 cm-1, respectively.
      
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The reactive mixture of 2,6-di-tert-bu ty 1 phenol with methyl acrylate was determined by high-performance liquid chromatography ( HPLC ) . Nine feature peaks of components were separated, in which the content of β- ( 3,5-di-tert -butyl -4- hydrophenyl ) methyl propionate was over 92%. Qualitative analysis was proceeded by obverse phase and inversed phase chromatograph?while the quantitative proceeded by comparing the internal standard with the external standard. The relative errors and relative deviations were...

The reactive mixture of 2,6-di-tert-bu ty 1 phenol with methyl acrylate was determined by high-performance liquid chromatography ( HPLC ) . Nine feature peaks of components were separated, in which the content of β- ( 3,5-di-tert -butyl -4- hydrophenyl ) methyl propionate was over 92%. Qualitative analysis was proceeded by obverse phase and inversed phase chromatograph?while the quantitative proceeded by comparing the internal standard with the external standard. The relative errors and relative deviations were -0.82% -3.78% and 0.86%-2.32%, respectively.

合成塑料、橡胶制品用抗氧剂1010的中间产物系2,6-二叔丁基苯酚与丙烯酸甲酯的反应混合物。用高效液相色谱法(HPLC)测定了该混合物的组成,分离出9个特征吸收峰。其主要产物β-(3,5-二叔丁基-4-羟基苯基)丙酸甲酯的含量>92%。用正反两相色谱和两种不同的检测器进行了定性分析,以面积外标法和内标法进行定量。各组分的相对误差为-0.82%—3.78%,相对偏差为0.86%—2.32%。本测定方法灵敏、准确,可满足科研和工业生产的定量分析要求。

Two products of sulfated alkanolamides from vegetable oils such as coconut oil and rice bran oil were prepared by the sodium methoxide catalyzed reaction of methyl esters of fatty acids with alkylolamines, the sulfation of the alkanolamides with chlorosulfonic acid and the nutrolization of the sulfated products with sodium hydroxide. The properties of the two products were measured and the results showed that they have low Krafft point, good foam height and lime soap dispersing power. The turbidities as a function...

Two products of sulfated alkanolamides from vegetable oils such as coconut oil and rice bran oil were prepared by the sodium methoxide catalyzed reaction of methyl esters of fatty acids with alkylolamines, the sulfation of the alkanolamides with chlorosulfonic acid and the nutrolization of the sulfated products with sodium hydroxide. The properties of the two products were measured and the results showed that they have low Krafft point, good foam height and lime soap dispersing power. The turbidities as a function of water hardness for the mixture of soap with the sulfated alkanolamide were also investigated and the best ratio of the two components in the mixture was found.

以甲醇钠为催化剂,将椰子油和米糠油脂肪酸甲酯与乙醇胺反应,合成了两种脂肪酸烷基醇酰胺中间体。再用氯磺酸酯化、用氢氧化钠中和,得到两种文题产品(Ⅰ和Ⅱ)。产品的红外光谱数据与其结构的各特征吸收峰相符。测定了产品的克拉夫特点、发泡力和钙皂分散力,发现两种产品均具有较好的发泡性能和钙皂分散性能。用吸光度法对Ⅱ与肥皂复配体系的抗硬水能力进行了研究,得到了最佳复配比例。

Polypropylene was graft polymerized with maleic anhydride at 135℃,with xylene as sol- vent and organic peroxide as initiator.The existence of graft copolymer was indicated by its infrared absorption spectrum.It shows a characteristic aborption peak at 1862cm~(-1)and 1787cm~(-1).The degree of grafting was found to be affected significantly by the amount of maleic anhydride monomer added. The polyblend of graft copolymer with kaolin was considered finally,with emphasis on its tensile strength.The results were...

Polypropylene was graft polymerized with maleic anhydride at 135℃,with xylene as sol- vent and organic peroxide as initiator.The existence of graft copolymer was indicated by its infrared absorption spectrum.It shows a characteristic aborption peak at 1862cm~(-1)and 1787cm~(-1).The degree of grafting was found to be affected significantly by the amount of maleic anhydride monomer added. The polyblend of graft copolymer with kaolin was considered finally,with emphasis on its tensile strength.The results were satisfactory.

本文用二甲苯为溶剂,有机过氧化物为引发剂,在135℃采用马来酸酐单体和聚丙烯的溶液接枝方法进行共聚,接枝物的红外吸收光谱,在1862cm~(-1)和1787cm~(-1)处,出现了特征吸收峰,证明其接枝物确系存在;同时发现马来酸酐单体的用量对接枝度有明显的影响,最后考察接枝物与高岭土共混,并着重对其抗张强度进行研究,得到满意的结果。

 
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