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ion trap


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'ion trap' can also refer to...

ion trap

ion trap

ion trap

Quantum computation with trapped ions and atoms

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Analysis of short tandem repeat polymorphisms by electrospray ion trap mass spectrometry

The Quantitation of Procaine in Equine Plasma by Liquid Chromatography-Linear Ion Trap Mass Spectrometry

Quantitative Determination of Phencyclidine in Pigmented and Nonpigmented Hair by Ion-Trap Mass Spectrometry

Sensitive detection of isoglobo and globo series tetraglycosylceramides in human thymus by ion trap mass spectrometry

Sensitive detection of isoglobo and globo series tetraglycosylceramides in human thymus by ion trap mass spectrometry

Model for Trapped Ion Interacting with Standing Wave via Gauge-Like Transformations

Accurate and rapid modeling of iron–bleomycin-induced DNA damage using tethered duplex oligonucleotides and electrospray ionization ion trap mass spectrometric analysis

Rapid Characterization and Identification of Flavonoids in Radix Astragali by Ultra-High-Pressure Liquid Chromatography Coupled with Linear Ion Trap-Orbitrap Mass Spectrometry

The Screening of Forensic Blood, Urine, and Tissue Specimens for Xenobiotics Using Ion-Trap Liquid Chromatography-Tandem Mass Spectrometry

Cypermethrin Residues Determination in the Milk of a Lactating Dairy Cow by Gas Chromatography-Ion Trap Mass Spectrometry

The Detection and Identification of Quaternary Nitrogen Muscle Relaxants in Biological Fluids and Tissues by Ion-Trap LC-ESI-MS

Simultaneous Determination of Cardenolides by Sonic Spray Ionization Liquid Chromatography-Ion Trap Mass Spectrometry—A Fatal case of Oleander Poisoning*

 

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A device used to trap ions by electrical or magnetic fields (or a combination of both). There are a number of types. The Paul trap has a ring electrode with a hyperbolic section and two hyperbolic end caps. Ions are trapped in an oscillating field produced by applying an oscillating voltage (about 1 MHz) between the ring electrode and the end caps. The device was invented in the 1950s by the German physicist Wolfgang Paul (1913–93). The Penning trap has a similar geometry and operation, but there is also a positive direct voltage (about 100 V) on the cap electrodes with respect to the ring electrode, and an axial magnetic field (about 5 tesla) to confine the particles. This type of trap was developed in 1959 by the German–American physicist Hans Dehmelt (1922–  ). He named it after Frans Penning, who had invented the Penning gauge, which also uses a magnetic field. Ion traps can be used for storing and investigating the properties of ions and other charged particles and can also be used in mass spectroscopy.

Subjects: Physics.


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