and the red shift or blue shift of wavenumbers occurred.The intensities of the absorption peak of 3 500~3 300 cm-1 in the infrared spectra of the frozen-thawed beef were reduced or even disappeared.This indicated that the intramolecular and intermolecular hydrogen bond-ing interactions,which ...
For example, there were red shift 3~16 cm-1 in the absorption peak around 3314 cm-1; the peak of 1454 cm-1 was blue shifted by 3cm-1; the peak of 1400 cm-1 was red shifted by 3cm-1; the peak of 2847 cm-1 was blue shifted by 4~8 cm-1. In addition, from the relative ...
and the red shift or blue shift of wavenumbers occurred.The intensities of the absorption peak of 3 500~3 300 cm-1 in the infrared spectra of the frozen-thawed beef were reduced or even disappeared.This indicated that the intramolecular and intermolecular hydrogen bond-ing interactions,which ...
and the effect of calcium cation strength and ultraviolet light irradiation on the secondary structure of trypsin were also evaluated.FTIR spectra of trypsin showed that Amide I band red shift and Amide Ⅱ band blue shift in aqueous environment on both surfaces compared with the dry trypsin powder...
摘要:利用傅里叶转换漫反射红外光谱(FTIR)和近红外光谱(NIR)测定了构树幼苗在不同浓度镉胁迫下叶片的红外光谱,揭示 了构树叶片中蛋白质、脂类等有机化合物合成对镉胁迫的生理响应。结果表明,构树幼苗在Cd胁迫下,鲜叶红边位置发生“蓝移” 现象,红边蓝移程度与叶绿素含量呈正相关关系。近红外光谱的710nm波长可作为...
The two other parameters of each diagram are defined by the intensities of the colors: red, green, and blue for tc, W, and Pa (GHOST diagrams) [11]. These diagrams correspond to the groups of solutions that represent the motional modes of a spin probe in particular surroundings and ...
Fourier Transform Infra-red Spectroscopy (FTIR) is a well-established analytical technique for qualitative analysis, with the mid-infra-red (IR) region (4000 cm−1 to 400 cm−1) being rich in information about the presence of the functional groups. FTIR can also be used quantitatively, as...
A red shift of the PVP carbonyl frequency on the order of 60 cm -1 indicatesthe formation of strong >CdO-Pt bonds. It is concluded that PVP adheres to the nanoparticles through acharge-transfer interaction between the pyrrolidone rings and surface Pt atoms. Heating the Pt nanoparticlesunder ...
Change of color from blue to red corresponds to increasing time of exposure of the protein to D2O (15, 30, 40, 60, 120 min and 19 h). (C) The inverted second derivatives of spectra in the amide I region (the color code is the same as in panel B). (The colors are visible in ...
The continuous red shift for d2 > 20 nm observed in the experiment can be thus attributed to the far-field contribution. We note that the constant peak position for d2 > 20 nm does not imply the absence of near-field probing. The peak height still decreases until d2 >...