Terminology Service < Semantic Lookup Platform

All terms in ONE

Label	Id	Description
obsolete_molecular concentration	OBI_0000577	[A concentration is a relational quality that inheres in a material entity towards molecular scattered aggregate that is part of it by virtue of some ratio of masses of the two or the counts of the grains of the two or volume occupied by the larger material entity.]
scattered molecular aggregate	OBI_0000576	[a material entity that consists of all the molecules of a specific type that are located in some bounded region and which is part of a more massive material entity that has parts that are other such aggregates]
Bruker Ultrastabilized NMR magnet	OBI_0000575	[An NMR magnet manufactured by Bruker for Ultra-High Field NMR, available from 750 MHz to 900 MHz, which provides reliable operation at reduced temperature and ambient pressure via being rigidly mounted and stabilized.]
high temperature column	OBI_0000574	[A high temperature column is a chromatography column which is suitable for and withstands very high temperatures in chromatography ovens.]
gradient pump system	OBI_0000573	[A pump system optimized for gradient chromatography.]
refractive index detector	OBI_0000583	[For analyzing non-UV absorbing substances, such as carbohydrates, lipids and polymers. This is also the detector of choice for gel permeation chromatography. The refractive index detector is one of the least sensitive LC detectors. It is very sensitive to changes in ambient temperature, pressure changes, flow-rate changes and can not be used for gradient elution. Despite these many disadvantages, this detector is extremely useful for detecting those compounds that are nonionic, do not adsorb in the UV, and do not fluoresce. There are many optical systems used in refractive index detectors but one of the most common is the differential refractive index detector.]
Bruker LC-NMR/MS platform	OBI_0000582	[Includes the connection to a high-resolution TOF-LC-MS system.]
y-column connector	OBI_0000581	[A column connector that connects one column on one side with two columns at the other side, hence building a Y shaped structure.]
AVANCE II spectrometer	OBI_0000580	[A spectrometer suitable for metabolomics and in vivo NMR studies but structural analysis of small molecules and low molecular weight proteins can also be performed. To accomplish these studies there are six probe-heads available. A successor, the AVANCE III came out recently.]
flame photometric detector	OBI_0000588	[The determination of sulfur or phosphorus containing compounds is the job of the flame photometric detector (FPD). This device uses the chemiluminescent reactions of these compounds in a hydrogen/air flame as a source of analytical information that is relatively specific for substances containing these two kinds of atoms. The emitting species for sulfur compounds is excited S2. The lambda max for emission of excited S2 is approximately 394 nm. The emitter for phosphorus compounds in the flame is excited HPO (lambda max = doublet 510-526 nm). In order to selectively detect one or the other family of compounds as it elutes from the GC column, an interference filter is used between the flame and the photomultiplier tube (PMT) to isolate the appropriate emission band. The drawback here being that the filter must be exchanged between chromatographic runs if the other family of compounds is to be detected.]
ATP	CHEBI_15422	[An adenosine 5'-phosphate in which the 5'-phosphate is a triphosphate group. It is involved in the transportation of chemical energy during metabolic pathways.]
plunger column	OBI_0000586	[A plunger column is a chromatography column with adjustable heigth control. By means of an adjustable endpiece (plunger) the user can adjust the column length without disturbing the packed bed. Plunger columns can equalize volume changes and thus avoids dead volumes within the column.]
anion exchange column	OBI_0000584	[An anion exchange column is a chromatography column that is used in anion exchange chromatography and which enables the separation of anion mixtures.]
electron capture detector	OBI_0000509	[The electron capture detector is a GC detector that uses a radioactive Beta emitter (electrons) to ionize some of the carrier gas and produce a current between a biased pair of electrodes. When organic molecules that contain electronegative functional groups, such as halogens, phosphorous, and nitro groups pass by the detector, they capture some of the electrons and reduce the current measured between the electrodes.]
column jacket	OBI_0000508	[A column jacket is a piece of column chromatography equipment that covers a column in order to ensure thermoisolation and create a controllable thermostatic microenvironment.]
photoionization detector	OBI_0000506	[The selective determination of aromatic hydrocarbons or organo-heteroatom species is the job of the photoionization detector (PID). This device uses ultraviolet light as a means of ionizing an analyte exiting from a GC column. The ions produced by this process are collected by electrodes. The current generated is therefore a measure of the analyte concentration. f the amount of ionization is reproducible for a given compound, pressure, and light source then the current collected at the PID's reaction cell electrodes is reproducibly proportional to the amount of that compound entering the cell. The reason why the compounds that are routinely analyzed are either aromatic hydrocarbons or heteroatom containing compounds (like organosulfur or organophosphorus species) is because these species have ionization potentials (IP) that are within reach of commercially available UV lamps. The available lamp energies range from 8.3 to 11.7 ev, that is, lambda max ranging from 150 nm to 106 nm. Although most PIDs have only one lamp, lamps in the PID are exchanged depending on the compound selectivity required in the analysis.]
multiple wavelength detector	OBI_0000505	[A chromatography detector, that can detect many discrete wavelengths in parallel and produces a multiple wavelength chromatographic profile.]
cytometric bead array assay measuring epitope specific interleukin-18 production by T cells	OBI_0001835	[An assay of epitope specific interleukin-18 production by T cells that uses a cytometric bead array assay.]
biological activity assay measuring epitope specific interleukin-18 production by T cells	OBI_0001380	[A T cell epitope specific cytokine production assay that detects interleukin-18 production by T cells.]
detection of specific nucleic acids with complementary probes assay measuring epitope specific interleukin-16 production by T cells	OBI_0001836	[An assay of epitope specific interleukin-16 production by T cells that uses a detection of specific nucleic acids with complementary probes assay.]