Featured Technology - Spectroscopy
Elemental analysis - Inductively-coupled Plasma Elemental Emission Spectroscopy|
ICP-AES is a highly sensitive method for quantitative elemental analysis. It is frequently applied for determining the amounts of wood preservatives or leaching preservatives from wood and for studies of water purification using wood fiber filters.
Infrared Spectroscopy - Fourier-transform infrared spectroscopy|
Infrared absorption spectra are characteristic of organic functional groups. This instrument is mainly applied for qualitative identification of materials or changes in materials. Spectra can be obtained from smooth surfaces by the use of at-tenuated total reflectance optics. Small areas can often be examined through the use of an infrared microscope accessory.
Nuclear Magnetic Resonance Spectroscopy (NMR)|
NMR is often used to determine the way in which atoms of a compound are con-nected to each other. While mass spectra indicate which atoms are present in a compound, NMR elucidates how they are arranged. Natural materials often have similar composition but behave differently because of different linkages.
X-Ray Photoelectron Spectroscopy
X-Ray photoelectron spectroscopy (XPS, ESCA) involves irration of specimens with monochromatic x-rays which promote the removal of a core or valence electron. The escaping electron has a kinetic energy that is determined by the energy of the photon and the binding energy of the electron to an atom. The kinetic energy of the emitted electrons is measured by an electron analyzer and the numbers of electrons corresponding to each element are counted.