Different solvent extractions of Spora Lygodii were obtained using methanol,chloroform and petroleum ether as medium.Experiments were carried out on them by FT-IR spectra.
以甲醇、氯仿、石油醚为提取溶剂,提取中药材海金沙得到海金沙不同溶剂提取物,采用红外光谱(FT-IR)图谱鉴别法对提取物进行实验。
IR spectra
英语例句库
Using lead benzoxy as curing agent,cured epoxy resin was analyzed by means of IR spectrum and DSC curves.Lead benzoxy was considered to be catalytic curing agent.
采用苯甲酸铅做固化剂，通过对环氧树脂固化物的红外光谱及DSC曲线分析，认为苯甲酸铅是一种催化型固化剂。
There are two reactive groups, amino and butoxy in the borate ester molecule.The structure of the borate ester was characterized by IR spectrum.
［中文文摘］通过分子结构设计,合成了一种氮-硼内配位结构的硼酸酯偶联剂,解决了硼酸酯水解稳定性差的问题,同时分子结构中含有氨基、丁氧基等活性基团。
Abstract： Using lead benzoxy as curing agent,cured epoxy resin was analyzed by means of IR spectrum and DSC curves.Lead benzoxy was considered to be catalytic curing agent.
摘 要： 采用苯甲酸铅做固化剂，通过对环氧树脂固化物的红外光谱及DSC曲线分析，认为苯甲酸铅是一种催化型固化剂。
Moreover, the results of IR spectrum and apolar component of surface free energy showed that the alkyl chains of OTS tilted on the surface of PTW after the modification.
IR分析和色散分量测定表明，改性后OTS的烷基链倾斜在PTW表面。
The IR spectra of hydrogel, alcogel and aerogel of BaFe12O19 were studied, and the ones of the powders calcined at different temperatures for different time were also studied.
对钡铁氧体的水凝胶、醇凝胶以及气凝胶的红外光谱进行了初步的观察，同时对不同焙烧温度及时间所得粉末的红外吸收光谱进行了考察。
中文百科
红外光谱学 Infrared spectroscopy
（重定向自IR spectra）
红外光谱学是光谱学中研究电磁光谱红外部分的分支。它包括了许多技术，到目前为止最常用的是吸收光谱学。同所有的分光镜技术一样，它可以被用来鉴别一种化合物和研究样品的成分。红外光谱学相关表见于文献，方便查找。
英语百科
Infrared spectroscopy 红外光谱学
（重定向自IR spectra）
Infrared spectroscopy (IR spectroscopy or Vibrational Spectroscopy) is the spectroscopy that deals with the infrared region of the electromagnetic spectrum, that is light with a longer wavelength and lower frequency than visible light. It covers a range of techniques, mostly based on absorption spectroscopy. As with all spectroscopic techniques, it can be used to identify and study chemicals. For a given sample which may be solid, liquid, or gaseous, the method or technique of infrared spectroscopy uses an instrument called an infrared spectrometer (or spectrophotometer) to produce an infrared spectrum. A basic IR spectrum is essentially a graph of infrared light absorbance (or transmittance) on the vertical axis vs. frequency or wavelength on the horizontal axis. Typical units of frequency used in IR spectra are reciprocal centimeters (sometimes called wave numbers), with the symbol cm. Units of IR wavelength are commonly given in micrometers (formerly called "microns"), symbol μm, which are related to wave numbers in a reciprocal way. A common laboratory instrument that uses this technique is a Fourier transform infrared (FTIR) spectrometer. Two-dimensional IR is also possible as discussed below.
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