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   吸收峰 在 轻工业手工业 分类中 的翻译结果: 查询用时:0.024秒
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吸收峰
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  absorption peak
    Infra-red spectrums showed that absorption peak of 1020cm-1 of 732 rein devided into two peaks of 1011cm~(-1) and 1025cm~(-1) of loaded resin. This suggested that 732 resin reacted with AlCl3.Mono-furfuryl maleic ester was acquired by esterification of maleic anhydride and furfuryl alcohol of 1:1 at 90℃for 2.5h.
    红外光谱检测结果表明,732 树脂在1020cm~(-1) 处的吸收峰发生明显裂分,形成1011cm~(-1) 和1025cm~(-1) 两个吸收峰,说明732 树脂磺酸基与AlCl_3 发生了络合反应。
短句来源
    UV-visible optical spectrum of water solution and alkali solution of this pigment presented a maximum absorption peak at 450-452nm wavelengths, and a marked absorption peak at 480nm;
    该色素水溶液和该色素0.5%KOH溶液的紫外—可见光光谱图,在波长450nm~452nm处有与其色调相匹配的最大吸收峰,在波长480nm处有标志性吸收峰;
短句来源
    (3) Water insoluble tea protein were studied by ultraviolet spectrometry and amino acid, and the results showed as follows: the characteristic absorption peak of water insoluble tea protein is 278.1 nm;
    (3)通过紫外和氨基酸分析方法研究非水溶性茶叶蛋白,结果表明:非水溶性蛋白在278.1 nm有特征吸收峰;
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    1,2-Diamino-3,5-dibromobenzene is used for thecolorimetric determination of selenium in artificially cultured seleniumyeast. It reacts with selenium(IV)ion to produce dibromopiaselenole,which has a characteristic absorption peak at 365nm.
    1,2-二氨基-3,5-二溴代苯(DBDA)在酸性介质中与硒(IV)生成二溴代苤硒脑,在365nm有特征吸收峰,其A365nm值与硒(Ⅳ)浓度间存在良好的直线回归关系。
短句来源
    Its maximum absorption peak is 455nm.
    最大吸收峰是455nm;
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  maximum absorption peak
    UV-visible optical spectrum of water solution and alkali solution of this pigment presented a maximum absorption peak at 450-452nm wavelengths, and a marked absorption peak at 480nm;
    该色素水溶液和该色素0.5%KOH溶液的紫外—可见光光谱图,在波长450nm~452nm处有与其色调相匹配的最大吸收峰,在波长480nm处有标志性吸收峰;
短句来源
    Its maximum absorption peak is 455nm.
    最大吸收峰是455nm;
短句来源
    The results showed that the pigment was well water-and ethanol-soluble,and its maximum absorption peak's wavelength was at 538 nm.
    结果表明,该品种火龙果的鲜果肉中富含一种易溶于水和乙醇的天然红色素,其在538 nm处有最大吸收峰;
短句来源
    It is oil-soluble,and its extraction rate is about 6%. The maximum absorption peak is 441nm.
    提取率6%左右,最大吸收峰446nm左右,稀溶液呈柠檬黄色。
短句来源
    When the pH-value equals three, the warelength of the maximum absorption peak is 525nm. The pigment solution still remains stable to sunlight, heat, general metal ions (except Fe3+ and Al3+) as well as varions kinds of additives. It is concluded that this kind of pigment has some developing value.
    紫红色甘蓝色素可从紫红色甘蓝老叶中提取.此色素属水溶性.色素溶液随PH值的改变而呈现出红、紫、蓝、绿、黄等多种颜色.其中pH=3色素液的最大吸收峰波长为525nm.它对日光、热、一般金属离子(Fe3+、Al3+除外)和多种添加剂有着一定的稳定性.具有一定的开发价值.
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  “吸收峰”译为未确定词的双语例句
    The FTIR results show that the peak at 1016.28cm-1 is enhanced,indicating the group of phosphate has been induced in starch molecule.
    1016.28cm-1的吸收峰强度加强,证实在淀粉中引入了磷酸根基团。
短句来源
    Gel filtration of the hydrolysate on Sephadex G-15 chromatogram yielded five absorbance peaks,the molecular distribution of the fractions with the most potent inhibition activity was located between 1320 and 311,the IC50 was 0.77mg/mL.
    Sephadex G-15葡聚糖凝胶色谱图上出现5个吸收峰,其中高ACE抑制活性组分的分子量在1320~311之间,IC50为0.77mg/mL。
短句来源
    It will be given an important reference value to explain the best testing position, best testing distance and sample status and give the same testing standards. The main absorbance positions of fruit are found at the wavenumber of 10176 cm, 8313 cm~(-1), 6860 cm~(-1), 5172 cm~(-1) and 4321 cm~(-1) and there is no obvious different with different samples.
    实验找到的水果漫反射光谱吸收峰位置出现在10176cm~(-1),8313cm~(-1),6860cm~(-1),5172cm~(-1)和4321cm~(-1)波段附近,研究结果表明不同水果波峰位置差异性不明显。
短句来源
    s, ultra-violet absorption 280nm.
    s,比旋度[α]_D~(25℃)=+46°(C=0.29,H_2O),紫外吸收峰为280nm。
短句来源
    There were two characteristicabsorption peaks of tea green pigment at 430nm and 663nm.
    茶绿色素在430nm 和663nm 处有两个特征吸收峰。 茶绿色素对热较为稳定;
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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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  maximum absorption peak
On illumination with light the azobenzene group underwent trans-cis isomerisation, which was manifested by a drop in the absorbance of the maximum absorption peak at ca.
      
The s-factor has the maximum absorption peak at 620 nm in the oxidized state, at 590 nm in the reduced state.
      
The maximum absorption peak in the visible area decreased to a minimum level after 96?h of incubation.
      
The maximum absorption peak of methyl parathion was recorded at 273 nm.
      


1. The vitamin B_(12) content of the Mollusk (Arca subcrenata) and its extr-action methods have been studied. The results obtained indicate that the vitaminB_(12) content of the fresh meat of Arca subcrenata is 65~85r/100g., of its brothobtained during processing, 0.20~0.30r/ml. and of the extractive of its meat0. 25~0. 40r/ml. 2. The vitamin B_(12) extracted from Arca subcrenata consists of needle-shapercrystals of dark red color. Its three absorption peaks are found at 278.3m~μ,361.0 m~μ, and 550.0 m~μ. The...

1. The vitamin B_(12) content of the Mollusk (Arca subcrenata) and its extr-action methods have been studied. The results obtained indicate that the vitaminB_(12) content of the fresh meat of Arca subcrenata is 65~85r/100g., of its brothobtained during processing, 0.20~0.30r/ml. and of the extractive of its meat0. 25~0. 40r/ml. 2. The vitamin B_(12) extracted from Arca subcrenata consists of needle-shapercrystals of dark red color. Its three absorption peaks are found at 278.3m~μ,361.0 m~μ, and 550.0 m~μ. The ratios of absorbency are: A361/A278=1.72, A361/A550=3.25 It was confirmed that the characteristics of vitamin B_(12) crystals extractedfrom Arca subcrenata well agree with the descriptions in Chinese PharmaceuticalCode (1963).

1.本文研究了毛蚶维生素B_(12)的含量及其提炼方法。试验证明:鲜毛蚶肉每百克含B_(12)65~85微克,在加工生产中蒸煮的蚶汤合B_(12)0.20~0.30微克/毫升,蚶肉浸出液含B_(12)0.25~0.40微克/毫升。 2. 从毛蚶中提取的B_(12)为暗红色针状结晶,其三个特征吸收峰分别位于278.3毫微米、361.0毫微米和550.0毫微米,峰值光密度之比为: A361/A278=1.72, A361/A550=3.25 表明毛蚶B_(12)结晶特性符合《中华人民共和国药典》的规定(1963年)。

The physiological causes of the core browning of pear fruit during storage were studied.The polyphenol oxidase activity in the core,flesh and skin were determined and the site of highest activity was found in the core.The distribution of the total polyphenolic content in the different parts of the pear fruit was similar to that of polyphenol oxidase activity.In the brown core the amount of the polyphenolic subs- tances decreased markedly as compare with the normal ones The separation and identification of the...

The physiological causes of the core browning of pear fruit during storage were studied.The polyphenol oxidase activity in the core,flesh and skin were determined and the site of highest activity was found in the core.The distribution of the total polyphenolic content in the different parts of the pear fruit was similar to that of polyphenol oxidase activity.In the brown core the amount of the polyphenolic subs- tances decreased markedly as compare with the normal ones The separation and identification of the polyphenolic substances were carried out by paper chromatography and high voltage electrophoresis.Seven compounds were found in the core,five in the flesh and six in the skin.The chlorogenic acid was the major component. The ultraviolet spectra of the chlorogenic acid oxidized by the polyphenol oxidase indicated that the absorption peak of chlorogenic acid at 324 mμ decreased after the oxidation.The absorption spectra gradually increased toward the utraviolet region, and was similar to that of the natural brown product of pear fruit. These results show that the physiological cause of the core browning is due to the enzymic browning reaction and the principal substate in the core is chlorogenic acid.

通过对鸭梨贮存过程中发生的黑心病问题的研究。发现:(1)多酚氧化酶活性和总多酚类化合物的含量,在鸭梨果实的不同部位中是不相同的,果心最高、果皮次之、果肉最低。当鸭梨发生黑心病后,果心总多酚类化合物含量下降。(2)应用纸上层析和高压电泳对多酚类化合物进行分离和鉴定。证明在果心内有7种多酚类化合物,在果肉中有5种,果皮中有6种。其中以绿原酸为多酚类化合物的主要成分,并在果心内的含量最高。(3)鸭梨黑心后绿原酸在果心内的含量下降。应用绿原酸作为多酚氧化酶的作用底物,酶作用后绿原酸在324毫微米的最大吸收峰下降,在200毫微米处出现新的最大吸收区,与鸭梨自然褐变产物相似。根据以上实验结果,我们认为多酚类化合物的酶促褐变是造成鸭梨黑心病的生理原因,绿原酸可能是主要的产物。

Eucheuma gelatinae is a red algae in Hainan of China. A sulphated galactan wasisolated from this algae. D-galactose and 3, 6-anhydro--D--glactose are major compo-nent of this polysaccharide. The molecular weight was 1.99×10~5. Its specific rotationwas a positive value.The gelling ability of the polysaccharide increased due to the presence of most ofalkali metal ions and alkali-earth metal ions.When the polysaccharido was treated with alkali or lime, the polysaccharide partlydesulphate, and sulphate groups decreased...

Eucheuma gelatinae is a red algae in Hainan of China. A sulphated galactan wasisolated from this algae. D-galactose and 3, 6-anhydro--D--glactose are major compo-nent of this polysaccharide. The molecular weight was 1.99×10~5. Its specific rotationwas a positive value.The gelling ability of the polysaccharide increased due to the presence of most ofalkali metal ions and alkali-earth metal ions.When the polysaccharido was treated with alkali or lime, the polysaccharide partlydesulphate, and sulphate groups decreased and 3,6-anhydro--D--galactose content increa-sed.The IR spcctra of the polysaccharide showed absorption peaks at 1240 cm~(-1), 930cm~(-1) and 845 cm~(-1).Fractionation of the polysaccharide with potassium chloride yielded potassium chlo-ride--soluble and insoluble fraction. IR spectra of soluble fraction showed absorptionpeak at 820 cm~(-1) besides at 1240 cm~(-1), 930 cm~(-1) and 845 cm~(-1) as insoluble fraction.According to the composition, properties and IR spectra of the polysaccharide, itwas deduced that potassium chloride-soluble fraction is mu-carrageenan-like, and in-soluble fraction is kappa-carrageenan-like.

琼枝多糖是琼枝(Eucheuma gclatinae)分离得到的一种硫酸酯化半乳聚糖。构成这种多糖的单糖主要是 D-半乳糖和3,6-脱水-D-半乳糖。分子量为 1.99×10~5,比旋光度为正值。大多数碱金属阳离子和碱土金属阳离子能使此多糖的胶凝能力提高。用碱或石灰处理时,琼枝多糖便部分脱去硫酸酿基团,3,6-脱水-D-半乳糖的含量增加。红外光谱分析证明,琼枝多糖在1240cm~(-1) 、930cm~(-1)和845cm~(-1)有吸收峰。用氯化钾分级时,琼枝多糖可分为溶于氯化钾溶液和不溶于氯化钾溶液两个级分;前者的红外光谱除了同后者一样在 1240cm~(-1),930cm~(-1)和845cm~(-1)有吸收峰外,在 820cm~(-1)处还有吸收峰。根据琼枝多糖的组成,性质和红外光谱,可以推断,溶于氯化钾溶液的级分是类 mu-卡拉胶;不溶于氯化钾溶液的级分是类 kappa—卡拉胶。

 
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