Glossary Term Analysers

What is X-ray Fluorescence (XRF)

How does XRF work? X-ray Fluorescence (XRF) is an analytical technique that uses the interaction of X-rays with a material to determine its elemental composition. XRF is suitable for solids, liquids and powders, and in most circumstances is non-destructive. XRF spectroscopy…

Interferometry or Interferometers

Interferometry is a family of techniques in which waves, usually electromagnetic waves, are superimposed causing the phenomenon of interference in order to extract information.Interferometry is an important investigative technique in the fields of astronomy, fiber optics, engineering metrology, optical metrology,…

Infrared spectroscopy

Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) involves the interaction of infrared radiation with matter. 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.…

NIR (near infrared spectroscopy)

Near-infrared spectroscopy (NIRS) is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum (from about 700 nm to 2500 nm). Typical applications include medical and physiological diagnostics and research including blood sugar, pulse oximetry, functional neuroimaging, sports…

Ramanspectroscopy

Raman spectroscopy (/ˈrɑːmən/; named after Indian physicist Sir C. V. Raman) is a spectroscopic technique used to observe vibrational, rotational, and other low-frequency modes in a system. Raman spectroscopy is commonly used in chemistry to provide a structural fingerprint by…

UV – VIS-spectrometry

Ultraviolet–visible spectroscopy or ultraviolet-visible spectrophotometry (UV-Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region. This means it uses light in the visible and adjacent ranges. The absorption or reflectance in the visible range directly…

Mass spectrometry

Mass spectrometry (MS) is an analytical technique that ionizes chemical species and sorts the ions based on their mass-to-charge ratio. In simpler terms, a mass spectrum measures the masses within a sample. Mass spectrometry is used in many different fields…

TDL – Tunable diode laser absorption spectroscopy

Tunable diode laser absorption spectroscopy (TDLAS) is a technique for measuring the concentration of certain species such as methane, water vapor and many more, in a gaseous mixture using tunable diode lasers and laser absorption spectrometry.[citation needed] The advantage of…

Dry colorimetric method

Since the creation of oil refining, a variety of treatment methods have been used to remove non-hydrocarbon impurities and other constituents. These compounds reduce the efficiency of the conversion processes and reduce the quality of the finished products. It is…

Density meter

A density meter, also known as a densometer, is a device that measures the density. Density is usually abbreviated as either  or . Typically, density either has the units of  or . The most basic principle of how density is calculated is by the formula: Where:  =…