Absorbance Units Full Scale (AUFS)
A term used to describe the sensitivity setting of an ultraviolet detector.
Glossary
This is a list of technical and specialist vocabulary related to Shimadzu's analytical products.
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A
Absorbance Units Full Scale (AUFS)
A term used to describe the sensitivity setting of an ultraviolet detector.
Absorbance Units Full Scale (AUFS)
A term used to describe the sensitivity setting of an ultraviolet detector.
Absorber (CO2)
Soda Lime, used as a carbon dioxide scrubber.
Absorber (CO2)
Soda Lime, used as a carbon dioxide scrubber.
Accelerator Mass Spectrometry (AMS)
The nuclei of ions generated in an ionization chamber are accelerated to a MeV or greater level and used to bombard a target gas or thin metallic film. The samples are dissociated down to ions such as 12C, 13C, and 14C and mass analysis is then performed. The method is used for dating of samples and in other areas.
Accelerator Mass Spectrometry (AMS)
The nuclei of ions generated in an ionization chamber are accelerated to a MeV or greater level and used to bombard a target gas or thin metallic film. The samples are dissociated down to ions such as 12C, 13C, and 14C and mass analysis is then performed. The method is used for dating of samples and in other areas.
Accelerator Mass Spectrometry (AMS)
The nuclei of ions generated in an ionization chamber are accelerated to a MeV or greater level and used to bombard a target gas or thin metallic film. The samples are dissociated down to ions such as 12C, 13C, and 14C and mass analysis is then performed. The method is used for dating of samples and in other areas.
Accuracy
A measure of closeness of an analysis value to the known actual value.
Accuracy
A measure of closeness of an analysis value to the known actual value.
Acid
Any of a class of substances with the ability to react with bases and certain metals to form salts. A substance that yields hydrogen ions when dissolved in water and can act as a proton donor. Used in NPOC analysis and catalyst regeneration.
Acid
Any of a class of substances with the ability to react with bases and certain metals to form salts. A substance that yields hydrogen ions when dissolved in water and can act as a proton donor. Used in NPOC analysis and catalyst regeneration.
Acidify
To turn acidic, as with solutions.
Acidify
To turn acidic, as with solutions.
Adduction
Ion type B+ or B- is added to neutral molecule M to create an [M+B]+ ion or [M+B]- molecule. (e.g. [M+NH4]+, [M+Na]+, [M+Cl]-).
Adduction
Ion type B+ or B- is added to neutral molecule M to create an [M+B]+ ion or [M+B]- molecule. (e.g. [M+NH4]+, [M+Na]+, [M+Cl]-).
Adduction
Ion type B+ or B- is added to neutral molecule M to create an [M+B]+ ion or [M+B]- molecule. (e.g. [M+NH4]+, [M+Na]+, [M+Cl]-).
Adiabatic Ionization
This is the addition or removal of electrons from atoms or molecules to create ions in the ground state.
Adiabatic Ionization
This is the addition or removal of electrons from atoms or molecules to create ions in the ground state.
Adiabatic Ionization
This is the addition or removal of electrons from atoms or molecules to create ions in the ground state.
Affinity Chromatography
A type of chromatography in which an adsorbent is used which contains a biospecific ligand, e.g., an enzyme, antibody, protein, connected to a solid support via a functional group on the support. The column, packed with such a material, exhibits specific affinity for a bio-active molecule.
Affinity Chromatography
A type of chromatography in which an adsorbent is used which contains a biospecific ligand, e.g., an enzyme, antibody, protein, connected to a solid support via a functional group on the support. The column, packed with such a material, exhibits specific affinity for a bio-active molecule.
Affinity Chromatography
A type of chromatography in which an adsorbent is used which contains a biospecific ligand, e.g., an enzyme, antibody, protein, connected to a solid support via a functional group on the support. The column, packed with such a material, exhibits specific affinity for a bio-active molecule.
Alkali
A substance having highly basic properties; a strong base that can damage the catalyst and decrease performance of instrument.
Alkali
A substance having highly basic properties; a strong base that can damage the catalyst and decrease performance of instrument.
Alpha
A measure of chromatographic selectivity or relative retention; a separation factor between two chromatographic peaks. It is actually the ratio of the capacity factors (k') for the two peaks.
Alpha
A measure of chromatographic selectivity or relative retention; a separation factor between two chromatographic peaks. It is actually the ratio of the capacity factors (k') for the two peaks.
Alpha
A measure of chromatographic selectivity or relative retention; a separation factor between two chromatographic peaks. It is actually the ratio of the capacity factors (k') for the two peaks.
Analyte
This is another expression for the term 'sample'. Used in FAB and ESI to designate samples dissolved in solvent matrices. (e.g., The analyte molecules are in solution.)
Analyte
This is another expression for the term 'sample'. Used in FAB and ESI to designate samples dissolved in solvent matrices. (e.g., The analyte molecules are in solution.)
Analyte
This is another expression for the term 'sample'. Used in FAB and ESI to designate samples dissolved in solvent matrices. (e.g., The analyte molecules are in solution.)
Analyzer
The section of a mass spectrometer where ion masses are separated and various focusing operations are done.
Analyzer
The section of a mass spectrometer where ion masses are separated and various focusing operations are done.
Analyzer
The section of a mass spectrometer where ion masses are separated and various focusing operations are done.
Analyzer Tube
This designates the tube in mass spectrometers through which ions pass.
Analyzer Tube
This designates the tube in mass spectrometers through which ions pass.
Analyzer Tube
This designates the tube in mass spectrometers through which ions pass.
Anhydrous
Free of water. When measuring out standards it is important to ensure their dryness.
Anhydrous
Free of water. When measuring out standards it is important to ensure their dryness.
Appearance Energy (AE)
The minimum energy that must be supplied to atoms or molecules to produce a certain ion (molecular ion, multiply charged ion, fragment ion, etc.). The term appearance potential is not used in this conjunction.
Appearance Energy (AE)
The minimum energy that must be supplied to atoms or molecules to produce a certain ion (molecular ion, multiply charged ion, fragment ion, etc.). The term appearance potential is not used in this conjunction.
Appearance Energy (AE)
The minimum energy that must be supplied to atoms or molecules to produce a certain ion (molecular ion, multiply charged ion, fragment ion, etc.). The term appearance potential is not used in this conjunction.
ASI-L
An accessory for the TOC-L series instrument that allows automatic analysis of multiple samples.
ASI-V
An accessory for the TOC-V series instrument that allows automatic analysis of multiple samples.
Associative Ionization
Describes the creation of single ions or associative ions through the internal energy from mutual interactions between neutral excited atoms A* or excited molecules M*. Chemi-ionization has the same meaning.
Associative Ionization
Describes the creation of single ions or associative ions through the internal energy from mutual interactions between neutral excited atoms A* or excited molecules M*. Chemi-ionization has the same meaning.
Associative Ionization
Describes the creation of single ions or associative ions through the internal energy from mutual interactions between neutral excited atoms A* or excited molecules M*. Chemi-ionization has the same meaning.
Atmospheric Pressure Chemical Ionization (APCI)
This is one method of ionization under atmospheric pressure. Normally designates ionization of vapor droplets, generated by spraying at atmospheric pressure, through reactions with ions (reagent gas ions) generated by corona discharge or other methods.
Atmospheric Pressure Chemical Ionization (APCI)
This is one method of ionization under atmospheric pressure. Normally designates ionization of vapor droplets, generated by spraying at atmospheric pressure, through reactions with ions (reagent gas ions) generated by corona discharge or other methods.
Atmospheric Pressure Chemical Ionization (APCI)
This is one method of ionization under atmospheric pressure. Normally designates ionization of vapor droplets, generated by spraying at atmospheric pressure, through reactions with ions (reagent gas ions) generated by corona discharge or other methods.
Atmospheric Pressure Ionization (API)
General term for ionization done under atmospheric pressure. (e.g., APCI, ESI, ISP, APS, LI) .
Atmospheric Pressure Ionization (API)
General term for ionization done under atmospheric pressure. (e.g., APCI, ESI, ISP, APS, LI) .
Atmospheric Pressure Ionization (API)
General term for ionization done under atmospheric pressure. (e.g., APCI, ESI, ISP, APS, LI) .
Atmospheric Pressure Spray (APS)
This term describes the spraying of sample solution under atmospheric pressure, from the end of an LC capillary tube using heating, pressurized gas flow, ultrasound, etc. Since ionization occurs simultaneously with spraying the term is also used to mean spray ionization.
Atmospheric Pressure Spray (APS)
This term describes the spraying of sample solution under atmospheric pressure, from the end of an LC capillary tube using heating, pressurized gas flow, ultrasound, etc. Since ionization occurs simultaneously with spraying the term is also used to mean spray ionization.
Atmospheric Pressure Spray (APS)
This term describes the spraying of sample solution under atmospheric pressure, from the end of an LC capillary tube using heating, pressurized gas flow, ultrasound, etc. Since ionization occurs simultaneously with spraying the term is also used to mean spray ionization.
Atomic Mass Unit (amu)
The unit is defined as 1/12 the mass of a single 12C atom and is equal to 1.6605655 x 10-27kg. The unit, u, is used to express atomic and molecular weights
Atomic Mass Unit (amu)
The unit is defined as 1/12 the mass of a single 12C atom and is equal to 1.6605655 x 10-27kg. The unit, u, is used to express atomic and molecular weights
Atomic Mass Unit (amu)
The unit is defined as 1/12 the mass of a single 12C atom and is equal to 1.6605655 x 10-27kg. The unit, u, is used to express atomic and molecular weights
Atomic Secondary Ion Mass Spectrometry (Atomic SIMS)
Describes SIMS of samples with solid atoms such as metals, carbon, silicon, etc.
Atomic Secondary Ion Mass Spectrometry (Atomic SIMS)
Describes SIMS of samples with solid atoms such as metals, carbon, silicon, etc.
Atomic Secondary Ion Mass Spectrometry (Atomic SIMS)
Describes SIMS of samples with solid atoms such as metals, carbon, silicon, etc.
Atomic Unit (AU)
A unit system for creating length, time and energy using basic units of electron mass me, electron charge e and Planck's constant divided by 2π. AU is the symbol used.
Atomic Unit (AU)
A unit system for creating length, time and energy using basic units of electron mass me, electron charge e and Planck's constant divided by 2π. AU is the symbol used.
Atomic Unit (AU)
A unit system for creating length, time and energy using basic units of electron mass me, electron charge e and Planck's constant divided by 2π. AU is the symbol used.
Atomic Weight
The mass of any element, expressed in grams, when the number of atoms present (Avogadro's number) is equal to the number of atoms in 12g of 12C carbon (1mol). The atomic weight of an element is an average value and is determined by measuring the mass and relative proportion of isotopes of the element using a mass spectrograph.
Atomic Weight
The mass of any element, expressed in grams, when the number of atoms present (Avogadro's number) is equal to the number of atoms in 12g of 12C carbon (1mol). The atomic weight of an element is an average value and is determined by measuring the mass and relative proportion of isotopes of the element using a mass spectrograph.
Atomic Weight
The mass of any element, expressed in grams, when the number of atoms present (Avogadro's number) is equal to the number of atoms in 12g of 12C carbon (1mol). The atomic weight of an element is an average value and is determined by measuring the mass and relative proportion of isotopes of the element using a mass spectrograph.
Auto Dilution
The TOC-V is capable of automatically diluting the samples by a preset factor. The result is multiplied by this factor to obtain the final concentration. The default Auto Dilution value is 1.
Auto Dilution
The TOC-L is capable of automatically diluting the samples by a preset factor. The result is multiplied by this factor to obtain the final concentration. The default Auto Dilution value is 1.
Auto-ionization
Describes the spontaneous ejection of an electron by a previously excited atom A* or molecule M* to create an ion. M* → M+? + e-
Auto-ionization
Describes the spontaneous ejection of an electron by a previously excited atom A* or molecule M* to create an ion. M* → M+? + e-
Auto-ionization
Describes the spontaneous ejection of an electron by a previously excited atom A* or molecule M* to create an ion. M* → M+? + e-
Autosampler
Instrument that automatically performs sampling. See ASI-V.
Autosampler
Instrument that automatically performs sampling. See ASI-L.
Average Molecular Weight
Same meaning as molecular weight
Average Molecular Weight
Same meaning as molecular weight
Average Molecular Weight
Same meaning as molecular weight
Axial Diffusion
Also known as Longitudinal Diffusion. Natural diffusion of the sample component solute band in the mobile phase, caused by the concentration gradient. The longer a compound solute band stays on the column, the greater the longitudinal diffusion.
Axial Diffusion
Also known as Longitudinal Diffusion. Natural diffusion of the sample component solute band in the mobile phase, caused by the concentration gradient. The longer a compound solute band stays on the column, the greater the longitudinal diffusion.
Axial Diffusion
Also known as Longitudinal Diffusion. Natural diffusion of the sample component solute band in the mobile phase, caused by the concentration gradient. The longer a compound solute band stays on the column, the greater the longitudinal diffusion.
