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   无吸收峰 的翻译结果: 查询用时:0.331秒
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无吸收峰
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  have not absorption peak
     P. (1995)appendix IV C, when the testing use by2cm~(-1) Resolution FTIR spectroscopy,the polymorph B have not absorption peak. but the polymorph A stillhad the characteristic absorption peak at 843cm~(-1), which absorption value have a liner relation with con-tent.
     当按现行药典规定使用分辨率为 2cm~(-1)的 FTIR仪器进行检查时,B 晶型在 858cm~(-1)处无吸收峰,而 A晶型在 843cm~(-1)处仍有特征吸收峰,其吸收强度与其含量成线性关系。
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  there were no absorbance peak
     Again, the substance was determined using UV, in 200-400 nm there were no absorbance peak values, but in 400-500 nm there were two highest absorbance peaks.
     又用UV测试,200~400nm无吸收峰; 400~500nm有两处最大吸收峰。
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  no absorptive peak
     The extracted samples were scanned in visible len gth. 2 yellow samples showed only one absorptive peak at 370nm,the 6 white sample s showed no absorptive peak.
     发酵样品在可见光谱范围内扫描 ,两黄色样品仅在 3 70nm处有一吸收峰 ,其它白色样品无吸收峰
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  “无吸收峰”译为未确定词的双语例句
     The most striking differences in the spectra were observed in the change of amide Ⅱ, the disappearance of δ s(CH 3) peak, and at 874.0 cm -1 whether appeared an absorption peak.
     它们的最大区别是 :酰氨Ⅱ带峰形的变化 ,δs(CH3 )峰的消失 ,以及 874 0cm-1附近有无吸收峰
短句来源
     There is no absorption peak at 6.2μm, and the middle wave and long wave transmittance are over 70%.
     它的透过性能极其优异,在6.2μm处无吸收峰,在中、长波红外透过率可达70%以上。
短句来源
     The content of glycerin in aqueous solution was directly determined by ATR-FTIR based on the characteristic peak of 1115.9—994cm -1 in infrared spectra.
     利用丙三醇(CH2OHCHOHCH2OH)在1115.9—994cm-1处有C—O伸缩振动的红外特征吸收峰,而水在此无吸收峰,采用衰减全反射红外光谱法,并用OPUS软件进行ATR较正来测定水溶液中丙三醇的含量。
短句来源
     A method is presented for the UV-spectrophotometric determination of Mo (Ⅵ ), which isbased on its reaction with Tiron in HAc-NaAc (pH= 4. 0)medium.
     研究了Mo(Ⅵ)与Tiron的反应,发现在pH4.0的HAc-NaAc介质中形成1:1配合物,该配合物在252nm、315nm有两个吸收峰,而在可见光区无吸收峰
短句来源
     No absorption peak for Pt nanoparticle is observed in the visible light range of 400-800nm, and the absorption value increases with the wavelength decreasing.
     在紫外可见光400-800nm范围内无吸收峰,随着波长的降低其吸收增大。
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    In order to understand the compositions of coloured fat soluble substances in the floating matters in the pressed inice of Hippophae Rhamnoides, the fresh fruit of Hippophae Rhamnoides from Huang-Long was used as the materials to be extracted with solution using the pigment method, and with acetone , petroleum and then separated with thinlayer chromatography from which eight coloured substances were obtained, of which one yellowish oily liquid stable to light was identified using IR and H-NMR. The results were...

    In order to understand the compositions of coloured fat soluble substances in the floating matters in the pressed inice of Hippophae Rhamnoides, the fresh fruit of Hippophae Rhamnoides from Huang-Long was used as the materials to be extracted with solution using the pigment method, and with acetone , petroleum and then separated with thinlayer chromatography from which eight coloured substances were obtained, of which one yellowish oily liquid stable to light was identified using IR and H-NMR. The results were in agreement with the data of triolein with "Atlas of Spectral data and physical constant for organic compounds II" . Again, the substance was determined using UV, in 200-400 nm there were no absorbance peak values, but in 400-500 nm there were two highest absorbance peaks.The results and the corresponding spectral atlas showed that this yellowish oily liquid through purification was triolein.

    为了解沙棘压榨汁内漂浮物中脂溶性有色物质的成分,以黄龙沙棘鲜果为试样,用提取色素法;经溶剂提取和薄层色谱分离,得到8种有色物质,其中有一种对光比较稳定的黄色油状液体,经IR及H—NMR鉴定,谱图与有机物物理常数和光谱谱图册中油精的数据一致。又用UV测试,200~400nm无吸收峰;400~500nm有两处最大吸收峰。测定结果与相应谱图表明,经提纯的这种黄色油状液体是油精。

    Two forms of Zn-metallothioneins (MT-1 and MT-2),which were induced by cadmium injection) were purified from rabbit liver. CdCl2(4 times in eight days) was injected in-tradermally into a rabbit, the liver was then homogenized and precipitated with ethanol. After dissolving the precipitate with Tris buffer, supernatants were subjected to Sephadex G-50 and DEAD Sepharose Fast Flow column chromatography to allow purification of the met-allothioneins. Zn and Cd concentrations in each fraction were measured by Single...

    Two forms of Zn-metallothioneins (MT-1 and MT-2),which were induced by cadmium injection) were purified from rabbit liver. CdCl2(4 times in eight days) was injected in-tradermally into a rabbit, the liver was then homogenized and precipitated with ethanol. After dissolving the precipitate with Tris buffer, supernatants were subjected to Sephadex G-50 and DEAD Sepharose Fast Flow column chromatography to allow purification of the met-allothioneins. Zn and Cd concentrations in each fraction were measured by Single Sweep Po-larography (SSP)instead of Atomic Absorption Spectrophotometry (AAS). Surprisingly, the content of Cd as well as Cu in the samples was negligible. Both proteins contained 6 atoms of Zn/mol and MT-1 and MT-2 had 18. 8 and 19.1 mercapto groups, respectively. Both Zn-MT and Cd-MT had a similar amino acid composition.

    预先给家兔皮下注射CdCl_2四次,取肝脏经匀浆、离心、乙醇沉淀后,通过Sephadex G-50凝胶过滤层析,DEAE Sepharose Fast Flow离子交换层析和Sephadex G-25层析柱脱盐,得到MT的两个“亚型”—MT-1和MT-2,对其进行鉴定,其紫外扫描图谱示在280和250nm处无吸收峰,而最大吸收在220nm处。MT-1和MT-2均不含镉和铜,而每分子结合6个锌。用简化巯基试剂测定,MT-1含18.8个巯基,MT-2含19.1个巯基;HPLC分析MT主要以单体存在,也有少量二聚体。氨基酸组成与Cd-MT一致。整个纯化过程采用示波极谱法和火焰原子吸收光谱法测锌含量。结果表明前者可代替后者。

    A method is presented for the UV-spectrophotometric determination of Mo (Ⅵ ), which isbased on its reaction with Tiron in HAc-NaAc (pH= 4. 0)medium. Mo (Ⅵ ) forms a complex withTiron with two maximum absorptions at 252nm and 315nm,and their apparent molar absorptivitiesbeing 6. 9 × 103L. mol-l. cm-l and 3. 5 × 103L. mol-l. cm-1, respectively. The composition ofthe complex is found to be l: 1. Its formation constant is logK' ML= 5. 15 ± 0. 01. The determination range of l. 6 × 10-6mol. L-1 ̄ 2. 0 × 10-4mol. L-1,the...

    A method is presented for the UV-spectrophotometric determination of Mo (Ⅵ ), which isbased on its reaction with Tiron in HAc-NaAc (pH= 4. 0)medium. Mo (Ⅵ ) forms a complex withTiron with two maximum absorptions at 252nm and 315nm,and their apparent molar absorptivitiesbeing 6. 9 × 103L. mol-l. cm-l and 3. 5 × 103L. mol-l. cm-1, respectively. The composition ofthe complex is found to be l: 1. Its formation constant is logK' ML= 5. 15 ± 0. 01. The determination range of l. 6 × 10-6mol. L-1 ̄ 2. 0 × 10-4mol. L-1,the detection limit of 8. 0 × 10-7mol.L- l, the recovery rate of 96 % - 102 %,and the variation coefficient of 1. 1 % (n= 12 ) are given. Ithas been applied to the determinatin of Mo in organo-phosphorus polymolybdates with satisfactory results.

    研究了Mo(Ⅵ)与Tiron的反应,发现在pH4.0的HAc-NaAc介质中形成1:1配合物,该配合物在252nm、315nm有两个吸收峰,而在可见光区无吸收峰。测得ε252=6.9×10 ̄3L·mol-1·Cm-1,ε315=3.5×103L·mol-1·Cm-1。据此建立了测定Mo(Ⅵ)的方法,在252nm和315nm处的线性范围分别为1.6×10-6mol·L-1~2.O×10-4mol·L-1和3.2×10-4mol·L-1~2.0×10-4mol·L-1。检出限分别为8.O×10-7mol·L-1和1.6×10-6mol·L-1.PO_4 ̄3+、SiO_3 ̄2-对测定无干扰,而W(Ⅵ)、V(Ⅴ)、Fe(Ⅲ)等有干扰。该法试用于有机磷合钼聚多酸盐样品的测定,结果满意,方法回收率96%~102%,变异系数≤1.l%(n=12)。

     
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