spectrum - Names and Identifiers
spectrum - Introduction
spectrum refers to a method of analyzing and measuring optical radiation according to different wavelengths or frequencies. spectrum can be divided into continuous spectrum and discrete spectrum.
Continuous spectrum refers to the continuous change of light waves over a wide range of frequencies, such as sunlight, which contains the entire visible spectrum and some ultraviolet and infrared rays. Discrete spectrum refers to light waves that appear only at specific wavelengths or frequencies, such as atomic spectrum and molecular spectrum.
spectrum have many applications. In chemistry, spectrum analysis is often used to identify the structure and chemical composition of substances. UV-visible spectrum are widely used in solution concentration measurement, catalytic reaction research and photochemical reaction kinetics research. Infrared spectrum can be used to determine the functional groups of organic compounds and to identify the structure of inorganic compounds. Nuclear magnetic resonance spectrum can be used to analyze the molecular structure of compounds and to determine the type and location of chemical bonds.
There are many ways to prepare spectrum. The most commonly used ones include absorption spectrum, emission spectrum, Raman spectrum, fluorescence spectrum, optical rotation spectrum, nuclear magnetic resonance spectrum, etc. The specific method of preparation depends on the substance being studied and the information to be obtained.
in the use of spectrum instruments, need to pay attention to some safety matters. Some spectrum with higher energy, such as ultraviolet rays and X-rays, may cause damage to the human body, so you should wear appropriate protective equipment, such as safety glasses and gloves. In addition, some chemicals may produce harmful gases or toxic substances when used. Appropriate protective measures should be followed and the operation should be carried out in a well-ventilated laboratory.
Last Update：2024-04-09 20:52:54