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特征吸收峰    
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  characteristic peaks
    The results show that KMnO_4 added to PSF modifies the microstructure of PSF,increasing species size of PSF and making UVA characteristic peaks of Fe~(3+) ion in PSF-Ⅰ higher than that in PSF.
    结果表明,高锰酸钾的加入改变了PSF的微观结构,使PSF的形态尺寸增大,导致PSF-Ⅰ中Fe3+离子的UVA特征峰比PSF高,并且保存了独立的高锰酸钾特征吸收峰(530nm).
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  characteristic absorption peaks
Spectrophotometric tracings of deoxycholate-solubilized matrix vesicles showed no characteristic absorption peaks or maxima belonging to any of the cytochrome complex components.
      
In contrast to common inorganic pigments, like Fe2O3, these pigments exhibit well-structured characteristic absorption peaks which allow their recognition.
      
IR studies of these glasses show characteristic absorption peaks corresponding phosphate and vanadium vibrations in the network.
      
Initially, both films lost about 36% weight within 96 h, which also correlated well with the loss in the characteristic absorption peaks in the region of the infrared spectrum typical of biopolymers.
      
Complete disappearance of the characteristic absorption peaks ofpyridinewas found and no new peaks were produced.
      
  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 irradiated alkaline glucose solution has a characteristicabsorption peak at 267nm.When both the concentration of glucose solutionand of sodium bicarbonate are 0.1M and the range of dose is from 1×10~5 to 1×10~7rad,the peak value is proportional to absorbed dose.The temperaturecoefficient is 0.9%/℃ between 5℃ and 35℃.The peak value has a decay,but it can be corrected.The decay speed decreases at the lower temperature.In this paper,the effects of the concentration of glucose solution andsodium bicarbonate...

The irradiated alkaline glucose solution has a characteristicabsorption peak at 267nm.When both the concentration of glucose solutionand of sodium bicarbonate are 0.1M and the range of dose is from 1×10~5 to 1×10~7rad,the peak value is proportional to absorbed dose.The temperaturecoefficient is 0.9%/℃ between 5℃ and 35℃.The peak value has a decay,but it can be corrected.The decay speed decreases at the lower temperature.In this paper,the effects of the concentration of glucose solution andsodium bicarbonate on response to irradiation are discussed and the substanceproduced in irradiated glucose solution is also mentioned.

辐照后的葡萄糖碱性溶液在267nm 处有一特征吸收峰。当葡萄糖溶液浓度和碳酸氢钠溶液的浓度都为0.1M,受照剂量在1×10~5—1×10~7rad 范围时,吸光度峰值与吸收剂量呈线性。温度从5℃至35℃时,温度系数为+0.9%/℃。吸收峰值有衰退,但在低温下衰退大为减慢。本文还讨论了葡萄糖溶液和碳酸氢钠溶液的浓度及其它因素对辐照响应的影响。

The paper has provided considered more correct characterstic group of 32 organic molecules that showed in the absorption range of perssad infraed spectrum;it has provided that when infared apparatus scans,the com- puter can collect data at the same time.After infrared scanning finished, the computer can automatically absorb summit position using pressad chara- cters of organic molecules without man-made interpose and intensity imfo- rmation of atlas analytic method in deciding perssad contained by organic molecules...

The paper has provided considered more correct characterstic group of 32 organic molecules that showed in the absorption range of perssad infraed spectrum;it has provided that when infared apparatus scans,the com- puter can collect data at the same time.After infrared scanning finished, the computer can automatically absorb summit position using pressad chara- cters of organic molecules without man-made interpose and intensity imfo- rmation of atlas analytic method in deciding perssad contained by organic molecules and also provide program design block diagram. The paper has given atlas analytic experimant results of fourty more typical compounds.

本文提供了被认为比较准确的32种有机分子特征基团红外光谱吸收范围;提出了红外仪扫描时计算机同时采集数据,红外扫描结束后,计算机不用人工干予自动利用有机分子基团的特征吸收峰的峰位、强度信息判断有机分子所含基团的图谱解析方法。并提供了程序设计框图。给出了40个较有代表性化合物的图谱解析实验结果。

As an important preparation method of Inorganic Polymer Flocculants (IPFs) with all-round performance, the use of enhanced reactions of modification for Polyaluminum Chlorides (PAC) is a trend of application. In this paper, auctorial-made multicore oligomers as a complexing agent, polysilicate as a crosslinking agent and polyacrylamide as a compounding agent are respectively used to enhance PAC and prepared three kinds of IPFs, named CO-PAC, CR-PAC and PAM-PAC. The Fourier Transform Infrared spectra (FTIR)...

As an important preparation method of Inorganic Polymer Flocculants (IPFs) with all-round performance, the use of enhanced reactions of modification for Polyaluminum Chlorides (PAC) is a trend of application. In this paper, auctorial-made multicore oligomers as a complexing agent, polysilicate as a crosslinking agent and polyacrylamide as a compounding agent are respectively used to enhance PAC and prepared three kinds of IPFs, named CO-PAC, CR-PAC and PAM-PAC. The Fourier Transform Infrared spectra (FTIR) of the three flocculants show that there have been found new chemical bonds beyond Al-OH in their structures, and each characteristic band of primary group in PAC has a band shift to a lower frequency dure to its structural aberration. These evidences suggested that enhanced reactions of modification for PAC are not at all a simple process of physical mix, but a chemical reaction to form other structural characteristics of inorganic polymers. The excellent coagulation behavior of these new flocculants depends mainly on the chemical actions, but there are a little physical effects between the modifiers and PAC.

对聚合氯化铝 (PAC)进行增效改性是制备高性能无机高分子絮凝剂的重要手段之一。用多核络合剂络合、聚合硅酸交联和聚丙烯酰胺复合三种增效方法改性PAC ,分别获得了结构有别于PAC的新型絮凝剂CO PAC ,CR PAC和PAM PAC。其傅里叶红外光谱 (FTIR)表明 ,在三种无机高分子结构中均存在Al—OH以外的新化学键 ,且原有基团的特征吸收峰位置因受结构畸变而发生一定的低频红移 ,证实了PAC增效反应并不是单纯的物理混合加成作用 ,而是形成了具有特殊结构的无机高分子的化学反应。这类无机高分子絮凝剂所具有的优良絮凝特性是由增效剂和PAC间以化学作用为主的物理化学因素共同作用的结果。

 
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