This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Photoionization detector" – news · newspapers · books · scholar · JSTOR(December 2009) (Learn how and when to remove this message)
A photoionization detector or PID is a type of gas detector.
Typical photoionization detectors measure volatile organic compounds and other gases in concentrations from sub parts per billion to 10 000 parts per million (ppm). The photoionization detector is an efficient and inexpensive detector for many gas and vapor analytes. PIDs produce instantaneous readings, operate continuously, and are commonly used as detectors for gas chromatography or as hand-held portable instruments. Hand-held, battery-operated versions are widely used in military, industrial, and confined working facilities for health and safety. Their primary use is for monitoring possible worker exposure to volatile organic compounds (VOCs) such as solvents, fuels, degreasers, plastics and their precursors, heat transfer fluids, lubricants, etc. during manufacturing processes and waste handling.
Portable PIDs are used for monitoring:
Industrial hygiene and safety
Environmental contamination and remediation
Hazardous materials handling
Ammonia detection
Lower explosive limit measurements
Arson investigation
Indoor air quality
Cleanroom facility maintenance
VOCs emitted by Table Tennis rackets
and 23 Related for: Photoionization detector information
A photoionizationdetector or PID is a type of gas detector. Typical photoionizationdetectors measure volatile organic compounds and other gases in concentrations...
spaces, etc. Common sensors include combustible gas sensors, photoionizationdetectors, infrared point sensors, ultrasonic sensors, electrochemical gas...
the column exit. In the helium photoionization mode, the PDD is a universal, non-destructive, high sensitivity detector. The response to both inorganic...
most sensitive detector known. Allows for the detection of organic molecules containing halogen, nitro groups etc. Photoionizationdetector measures the...
phosphotyrosine-binding domain, a protein domain which bind to phosphotyrosine Photoionizationdetector, measures volatile organic compounds and other gases Physical Interface...
which encounters an atom or ion will photoionize it. The probability of photoionization is related to the photoionization cross-section, which depends on the...
was also applied as a detector for LC, though the samples must be vaporized first to be detected by the photoionizationdetector. Eventually PI was applied...
averaged. The photoionization microscope directly visualizes atomic structure and quantum states. A photoionization microscope employs photoionization, along...
CH2=C(CH3)2 → H2NC(CH3)3 Applications are found in the calibration of photoionizationdetectors. Isobutylene is a highly flammable gas. Butyl rubber Polythene...
toxic and combustible gases. With its photoionization technology, the company provides photoionizationdetector (PID) that can help safety professionals...
Explosive vapor detectors (EVD) are explosives detection instruments whose principle of operation is the selective analysis of collected vapor samples...
need to be ionized, usually by corona discharge, atmospheric pressure photoionization (APPI), electrospray ionization (ESI), or radioactive atmospheric-pressure...
areas flow upwards, not unlike the discharge in a Jacob's ladder. A photoionization effect can also be observed here, as the electrode area covered by...
one, fixed energy photon will be responsible for photoionization. The energy balance of photoionization comprises the internal energy and the adiabatic...
systems. Electronic direct-read instruments for gases include photoionizationdetectors, infrared analyzers, and gas monitors. For dust and particulates...
} in a radiation field, the probability of observing a photoionization event in this detector between time t {\displaystyle {t}} and t + d t {\displaystyle...
ion implantation and for space propulsion (Hall-effect thrusters). Photoionization is the ionization process in which an ion is formed from the interaction...
ground-based observation with a telescope of area A (ignoring losses and detector noise), arising from Poisson statistics, is only: S / N = A × N s N s +...
atmospheric-pressure chemical ionization (APCI) and atmospheric pressure photoionization (APPI) are some of the common variants of the technique. CI mass spectrometry...
Global Information