Infrared spectroscopy - Wikipedia
Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) is the measurement of the interaction of infrared radiation with matter by absorption, emission, or reflection. It is used to study and identify chemical substances or functional groups in solid, liquid, or gaseous forms.
傅里叶红外光谱仪 - 百度百科
傅里叶变换红外光谱仪 （Fourier Transform Infrared Spectrometer，简写为FTIR Spectrometer）,简称为傅里叶红外光谱仪。它不同于色散型红外分光的原理，是基于对干涉后的红外光进行傅里叶变换的原理而开发的红外光谱仪，主要由红外光源、光阑、干涉仪（分束器、动镜 ...
Infrared Spectroscopy - Chemistry LibreTexts
2022年4月16日 · Infrared Spectroscopy is the analysis of infrared light interacting with a molecule. This can be analyzed in three ways by measuring absorption, emission and reflection. The main use of this technique is in organic and inorganic chemistry.
Infrared (IR) Spectroscopy- Definition, Principle, Parts, Uses
2022年1月8日 · Infrared (IR) spectroscopy or vibrational spectroscopy is an analytical technique that takes advantage of the vibrational transitions of a molecule. It is one of the most common and widely used spectroscopic techniques employed mainly by inorganic and organic chemists due to its usefulness in determining the structures of compounds and ...
Understanding an IR Spectrometer: A Complete Guide - JASCO
The light source for a IR spectrometer is typically a broadband emitter, such as a mid-IR ceramic source (50 – 7,800 cm-1), a near-IR halogen lamp (2,200 – 25,000 cm-1), or a far-IR mercury lamp (10 – 700 cm-1). JASCO FTIR spectrometers come standard with a …
Infrared Spectroscopy - Chemistry LibreTexts
2023年1月30日 · Infrared (IR) spectroscopy is one of the most common and widely used spectroscopic techniques. Absorbing groups in the infrared region absorb within a certain wavelength region. The absorption peaks within this region are usually sharper when compared with absorption peaks from the ultraviolet and visible regions.
4.2: IR Spectroscopy - Chemistry LibreTexts
Fourier Transform Infrared Spectroscopy of Metal Ligand Complexes. Mechanistic Description of the Vibrations of Polyatomic Molecules; Principle of Absorption Bands; The Infrared Spectrometer; A Typical Application: the detection of metal ligand complexes. Some General Absorption peaks for common types of functional groups
Infrared (IR) spectroscopy is one of the most common spectroscopic techniques used by organic and inorganic chemists. Simply, it is the absorption measurement of different IR frequencies by a sample positioned in the path of an IR beam. The main goal of IR spectroscopic analysis is to determine the chemical functional groups in the sample.
Infrared (IR) spectroscopy | Resource | RSC Education
2019年4月2日 · An infrared spectrometer analyses a compound by passing infrared radiation, over a range of different frequencies, through a sample and measuring the absorptions made by each type of bond in the compound.
Infrared Spectroscopy - Michigan State University
Infrared spectrometers, similar in principle to the UV-Visible spectrometer described elsewhere, permit chemists to obtain absorption spectra of compounds that are a unique reflection of their molecular structure. An example of such a spectrum is …