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吸收峰
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  absorption peak
    The FTIR spectrograms of antioxidant 1010, PE and PP are analyzed, the characteristic absorption peak of antioxidant 1010 is determined at the wavenumber of 1746-1 and the influence of the PE and PP test parts containing a given quantity of antioxidant 1010 on the measured spectrograms and curves is analyzed in detail.
    分析了抗氧剂1010和PE、PP粉料的FTIR图,确定了抗氧剂1010在聚烯烃中的特征吸收峰(1746cm-1),详细分析了用抗氧剂1010分别与定量的PE、PP所制样品对所测谱图和所制曲线的影响。
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    are introduced into the molecular chains of HDPE during electron beam irradiation, which are corresponding with the IR absorption peak at 1715cm-1, 1699cm-1 and 1719cm-1, respectively.
    与双键相邻的羧基。 酮羰基和酯基,它们在红外光谱图中分别对应于1715cm~(-1),1699cm~(-1),1719cm~(-1),1737cm~(-1)的红外吸收峰
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    By UV-Vis spectrophotometic, mass spctra-graphic analysis and the plenty of information supporting, ingredient I is estimated as anisomycin whose element of mass is 26S. 2 and UV absorption peak is 223,275nm.
    通过紫外扫描、质谱分析并查阅大量文献,初步判断Ⅰ号素为茴香霉素(Anisomycin),分子量为265.2,其紫外吸收峰是223、275nm;
短句来源
    II ingredient is a tetraene antibiotks whose element of mass is similar to the Lucensomycin and UV absorption peak is 291,305,319nm.
    Ⅱ号素为—四烯类物质,分子量与鲁斯霉素(Lucensomycin)相同均为710,其紫外吸收峰是291,305,319nm。
短句来源
    Accoding to the results, eugenol was one of the main active component of TW-15 and PW-6. The absorption peak of eugenol in UV is 282nm, and its holding time in HPLC is 10.019min.
    丁香酚紫外光谱在282nm 处有一最大吸收峰,HPLC 保留时间为10.019min。
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  adsorption peak
    The RF-UV spectra of TS/TiO2 exhibit an adsorption peak at 250nm which is different from the framework titanium adsorption of the common titanium silicalite which peaks at 210-220nm.
    TS/TIO。 的f刀V光谱吸收峰在250nxn处出现,这与常规钛硅沸石在210~220urn处出峰的骨架钛吸收有较大的不同。
短句来源
    5. CO is not detected in outlet gas. In FTIR spectra, there is not adsorption peak of CO. So, it is expected that tiiere is not water gas shift reaction in our experiment
    5.反应尾气中没有监测到CO,在红外谱图上也没有发现CO吸收峰,说明该反应体系不存在水煤气变换反应。
短句来源
    Analyzing the polymer structure' s feature with IR and NMR for the composition of fluorocarbon compound, the charts indicate that the adsorption peak of two co-polymer monomer appearing in the spectrum.
    ⑤利用红外光谱和核磁共振波谱分析该施胶剂高分子的结构性能,对氟碳共聚物的组成进行了分析,结果表明,两种共聚单体的特征吸收峰在谱图中都有出现,也可以说明,共聚单体进入了氟碳共聚物的分子链段。
短句来源
    An adsorption peak was observed in the UV region at 500 nm for the polymer. The polymer has a high stability in air and the alkaline solution.
    在空气和碱性溶液中具有很高的稳定性,在紫外-可见光谱图上,聚合物的吸收峰出现在500nm左右。
短句来源
  “吸收峰”译为未确定词的双语例句
    Results The apparent molar absorptivity of TCNQ complex was 1.98×102 L·mol-1·cm-1at 745 nm,and 3.61×102 L·mol-1·cm-1at 845 nm.
    结果实验表明:盐酸普萘洛尔与TCNQ间的反应在丙酮介质中进行,形成的络合物在745 nm和845 nm有2个吸收峰,表观摩尔吸光系数分别是1.98×102L. mol-1.cm-1和3.61×102L.
短句来源
    TFPSⅠhad UV absorption on 280nm and the elute curves of Sephadex G-150 showed a symmetrical peak.
    筛选得出树脂法脱色效果最好,酶法-Sevage联用法脱蛋白效果最好,最佳提取、脱色、脱蛋白工艺处理获得的TFPSⅠ,280nm处有紫外吸收峰,Sephadex G-150洗脱曲线为单一对称峰。
短句来源
    Two N—H absorptions of products were observed at approximately 3 200~3 400 cm-1 in the infrared spectrum. Resonances corresponding to the N—H chemical shift were from 7.3 to 10.5 in 1H NMR. The results of elemental analysis for the products were in agreement with the theoretical values.
    产品的结构经元素分析、IR、1HNMR等测试技术得到确证,产物的IR谱中,在3 200~3 400 cm-1出现2个N—H吸收峰,1H NMR谱中,在δ7.3~10.5之间有2个N—H吸收峰,产品的元素分析结果与理论值基本相符。
短句来源
    P(DThPh) and P(DThB) were 488nm and 599nm in the photoluminescence spectra,respectively.
    P(DThB)分别在460nm、550nm和700nm处有吸收峰。 P(DThPh)和P(DThB)分别在488nm和599nm处有较强的荧光。
短句来源
    The analog computation of the PBO congeries molecular model,which is composed of three repeated units,shows that the interfacial action between two conjugated planar structures of the PBO molecules makes the maximum(absorption)-peak of electronic spectrum a red shift from 383.06 nm to 407.19 nm.
    由含3个单元的PBO聚集态分子模型模拟计算显示,PBO分子链共轭平面结构间的面面相互作用使得电子光谱最大吸收峰由383.06 nm红移至407.19 nm。
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  absorption peak
absorption peak from the electronic spectra is red shifted and the intensity is weakened and that the values of peak current from cyclic voltammetry are decreased significantly in the presence of DNA compared with that in the absence of DNA.
      
The modified enzyme showed an absorption peak at 337 nm and a fluorescent emission peak at 410 nm, which are characteristic of an isoindole derivative formed by OPTA binding to a thiol and an amine group in proximity within the enzyme.
      
The modified enzyme showed an absorption peak at 337 nm and a fluorescent emission peak at 410 nm, which are characteristic of an isoindole derivative formed by OPTA binding to a thiol and an amine group in proximity within the enzyme.
      
A reaction intermediate was obtained in two-phase aqueous-organic system and an absorption peak at 710 nm was confirmed to be that of the intermediate in relation to OPDA.
      
A reaction intermediate was obtained in two-phase aqueous-organic system and an absorption peak at 710 nm was confirmed to be that of the intermediate in relation to OPDA.
      
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  adsorption peak
An approximate equation of the adsorption peak, suitable for performing numerical calculations on a computer using standard programs, is proposed.
      
With the hanging mercury drop electrode Pb alone can be determined only if the electrode is first modified in-situ with Triton X 100 to increase the separation between the Pb peak and a broad, interfering adsorption peak which overlaps the Cu peak.
      
Nile red dissolved in DMSO showed an adsorption peak at 552?nm, and emission peak at 636?nm, with molar extinction coefficient of 19,600?cm-1?M-1.
      
Previous work has suggested that this adsorption peak is due to cytochromeb556 of succinate dehydrogenase and to cytochromeo.
      
As many as 100 such gratings may be distributed along a fiber, with the adsorption peak of each grating identified using a frequency-scanning laser.
      
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This paper describes a study on the thermo-tolerance of dryspinning polyimide (PI) fiber. Some of properties are compared with the aromatic polyamide fiber 1414 (which corresponds to Kevlar fiber). The features are: (1) The thermo-tolerance of PI fiber is superior to aromatic polyamide fiber 1414. (2) The PI fiber has good hot strength and retains more than 50% of its original strength at 250℃, and its broken elongation is unchanged from room t(?)mperature to 450℃. It is found that PI fiber has activation energy...

This paper describes a study on the thermo-tolerance of dryspinning polyimide (PI) fiber. Some of properties are compared with the aromatic polyamide fiber 1414 (which corresponds to Kevlar fiber). The features are: (1) The thermo-tolerance of PI fiber is superior to aromatic polyamide fiber 1414. (2) The PI fiber has good hot strength and retains more than 50% of its original strength at 250℃, and its broken elongation is unchanged from room t(?)mperature to 450℃. It is found that PI fiber has activation energy k=21.3 Kcal/mol, according to the TGA curve, the equation of thermal-agcing half period of strength can be expressed as

本文研究了干法纺制的聚酰亚胺(PI)纤维的耐热性,並与芳纶1414纤维(相当于美国的Kevlar)作了对比。得到的结果是:①PI纤维的耐热性优于芳纶1414纤维;②PI纤维在250℃下保持原强50%以上,在室温~450℃下断裂伸长百分率基本保持不变;从热天平求得的PI纤维活化能为21.3千卡/摩尔;热老化的强度半衰期方程式为1n г=1.07×10~4/T-12.7;③未牵伸PI纤维为无定形结构,老化后未见发生变化;经牵伸后的PI纤维在老化(300℃,1000小时)后,结晶度和取向度都有上升;④在PI的红外光谱上,观察到某些吸收峰透过率的相对差异可作为定性判别是否有结晶存在的依据。

The infrared(IR) absorption spectra and the ultraviolet (UV) absorption spectra of milled bagasse lignin (M.B .L .)have been investigated and considerable differences of IR and UV spectra between M.B.L. and picea jezoensis milled wood lignin(M.W L.) had been found.The absorption bands are appeared at 1270 cm-1 and 1040 cm-1 of IR spectrum of M.B.L.. These peaks are less than that of picea jezoensis M.W.L., which is considered to be due to the less presence of ether linkages of guaiacyls in M.B.L.. More syringyls...

The infrared(IR) absorption spectra and the ultraviolet (UV) absorption spectra of milled bagasse lignin (M.B .L .)have been investigated and considerable differences of IR and UV spectra between M.B.L. and picea jezoensis milled wood lignin(M.W L.) had been found.The absorption bands are appeared at 1270 cm-1 and 1040 cm-1 of IR spectrum of M.B.L.. These peaks are less than that of picea jezoensis M.W.L., which is considered to be due to the less presence of ether linkages of guaiacyls in M.B.L.. More syringyls exist in M.B.L., that is responsible for the appearance of a strong, absorption at 1333cm-1.At the IR spectra of M.B.L. there is no visible absorption band of carbonyl group which appeared at 1665-1670cm-1 in the case of picea jezoensis M.W.L.. However, absorption bands of ester at about 1175cm-1 and of ester carbonyl group at 1715cm-1 are present and they are dispersed when the M.B.L. was treated with alkaline solution, this fact shows that the conjugated ester bonds exist in M.B.L.The UV spectrum of M.B.L. is different from that of picea jezoensis M.W.L. which appeared an. absorption band at 280nm and a reduction of UV absorption above 290 nm after the reduction with sodium borohydride. The UV spectrum of M.B.L. is less changed after sodium borohydride treatment,but a peak at 280 nm and a shoulder at 300-315 nm are appeared on treating with sodium hydroxide, and it is proved that the M.B.L. does not contain much aldehyd'e and keto carbonyl groups as in M.W.L. but contains ester carbonyl groups.

本文研究了磨蔗渣木素(M.B.L.)的红外(IR)吸收光谱和紫外(UV)吸收光谱,发现它与鱼鳞松磨木木素(M.W.L.)的IR和UV光谱有很大的差别。 M.B.L.的IR光谱在1270cm~(-1)和1040cm~(-1)处显示出较鱼鳞松木素为弱的吸收峰,说明M.B.L.中愈疮木基的醚型连接的数量较少,在1333cm~(-1)处有强的吸收,表明M.B.L.中存在不少的丁香基。 M.B.L.的IR光谱缺乏鱼鳞松M.W.L.在1665—1670cm~(-1)区域的羰基吸收峰,但在1175cm~(-1)附近有酯的吸收峰和1715cm~(-1)处的共轭酯的酯羰基吸收峰。M.B.L.被碱处理后这些峰消失,显示出具有共轭酯的连接。 M.B.L的UV光谱与鱼鳞松M.W.L.不同。其UV光谱在280nm处显示吸收峰,且经硼氢化钠还原后UV光谱变化很少,但经碱处理后其UV光谱在280nm有峰,在300—315nm处有肩,这些都说明它不像鱼鳞松M.W.L.具有较多的醛和酮羰基,而是具有酯型的羰基。

The production of the chymotrypsin inhibitor by Streptomyces S-81-24 reached a maximum after two to three days in submerged culture. Chymotrypsin inhibitor can be extracted either by absorption using D-resin or with n-butanol at pH 2~3. It is soluble in water and methanol, but insoluble in non-polar solvents, such as, ethyl-acetate, ether, benzene, chloroform etc. Novisible absorbtion is observed in U. V. spectrum. It inhibits not only chymotrypsin strongly but also inhibits trypsin and pepsin to a certain extent....

The production of the chymotrypsin inhibitor by Streptomyces S-81-24 reached a maximum after two to three days in submerged culture. Chymotrypsin inhibitor can be extracted either by absorption using D-resin or with n-butanol at pH 2~3. It is soluble in water and methanol, but insoluble in non-polar solvents, such as, ethyl-acetate, ether, benzene, chloroform etc. Novisible absorbtion is observed in U. V. spectrum. It inhibits not only chymotrypsin strongly but also inhibits trypsin and pepsin to a certain extent. Whether this poly-functional action is due to the inhibitor as a whole or due to the different components of the substance needs further investiga-tion.

链霉菌S-81-24所产生的糜蛋白酶抑制剂,其高峰期是在摇瓶培养的2~3天。提取时既可以利用大孔树脂吸附也可以用正丁醇在pH2~3进行萃取。它易溶于水、甲醇,但不溶于乙酸乙醋、乙醚、苯和氯仿等非极性有机溶剂。没有明显的紫外吸收峰。初步测定,它不仅对糜蛋白酶有强的抑制作用而且对胰蛋白酶、胃蛋白酶也有一定的抑制作用。但是这种多功能性是来自样品的同一组分还是不同组分尚待今后样品进一步纯化后再行深入探讨。

 
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