photoionization detector

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• Photoionization detector — A photoionization detector or PID is a type of gas detector. Typical photoionization detectors measure volatile organic compounds and other gases in concentrations from 1 parts per billion to 10 000 parts per million (ppm). The photoionizaton… …   Wikipedia

• photoionization detector — (PID)    A type of detector used in chromatography which employs ultraviolet radiation rather than a flame to ionize compounds as they pass through a detector. Photoionization detectors are particularly sensitive to aromatic compounds …   Forensic science glossary

• Gas detector — A gas detector is a device which detects the presence of various gases within an area, usually as part of a system to warn about gases which might be harmful to humans or animals. Gas detectors can be used to detect combustible, toxic, and oxygen …   Wikipedia

• Desorption atmospheric pressure photoionization — schematic Desorption atmospheric pressure photoionization (DAPPI) is an atmospheric pressure ionization technique for mass spectrometry. DAPPI enables direct analysis of solid samples without pretreatment and analysis of samples deposited on… …   Wikipedia

• Photoelectrochemical processes — Photons emitted in a coherent beam from a laser Composition {{{composition}}} Interactions Electromagnetic, Optical, C …   Wikipedia

• List of sensors — * Accelerometer * Touch sensor * Active pixel sensor * Air flow meter * Alarm sensor * Bedwetting alarm * Bhangmeter * Biochip * Biosensor * Breathalyzer * Capacitance probe * Carbon paste electrode * Carbon monoxide detector * Catadioptric… …   Wikipedia

• PID — stands for a number of things, including those mentioned below.Medicine*Prolapsed intervertebral disc, commonly called a herniated disc *Primary immune deficiency *Pelvic Inflammatory Disease (or Pelvic Inflammatory Disorder), an infection and… …   Wikipedia

• Photoionisation — is the physical process in which an incident photon ejects one or more electrons from an atom, ion or molecule.The ejected electrons, known as photoelectrons, carry information about their pre ionised states. For example, a single electron can… …   Wikipedia

• PID — Abbreviation for pelvic inflammatory disease. * * * pain intensity difference [score]; patient identification; patient identity; pelvic inflammatory disease; photoionization detector; picture image directory; plasma iron disappearance;… …   Medical dictionary

• PID — • pain intensity difference [score]; • patient identification; • patient identity; • pelvic inflammatory disease; • photoionization detector; • picture image directory; • plasma iron disappearance; • postinertia dyskinesia; • preimplantation… …   Dictionary of medical acronyms & abbreviations

• mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …   Universalium