According to McGraw-Hill Higher Education, the basics of Infrared (IR) spectroscopy correspond to interaction between radiation from the IR region within the EM spectrum. Within the molecule, excitation of the vibrations of polar covalent bonds, including bending and stretching modes, are caused by IR radiation.
As the IR region of the EM spectrum is scanned, the energy absorptions, such as the IR spectrum of butanal, are shown. Generally, an IR spectrum is divided into two approximate regions: the fingerprint region and the functional group region, which supplies most of the information needed to interpret an IR spectrum. The most important information regarding an IR spectrum is what function groups exist within the molecule.Learn More
Atoms are the basic building blocks of matter. When two or more atoms join together, they form molecules. An example would be two hydrogen atoms and an oxygen atom joining to form a water molecule.Full Answer >
The basic principle of atomic absorption spectrophotometry states that atoms absorb specific wavelengths of electromagnetic radiation. Spectrophotometry is a technique used in measuring the quantity of light absorbed by a substance by determining the intensity of light transmitted by a chemical solution.Full Answer >
The basic building block of all silicate minerals is the silicate tetrahedron, comprised of a central atom of silicon bonded to four atoms of oxygen. This is generally displayed symbolically as a three-sided, four-pointed pyramid.Full Answer >
The main principle of atomic absorption spectroscopy is that atoms of different elements absorb and re-emit light in different ways. In this characterization technique, an extremely light-sensitive device called a photometer measures how much light passes through a material and how much is absorbed to identify the elements present.Full Answer >