TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

CHROMATOGRAPHIC PEAK [9 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-05-04

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Analytical Chemistry
DEF

An output signal of [a] measuring system.

OBS

Chromatographic response is peak area or peak height for a certain component.

OBS

response: term standardized by ISO in 2014.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Chimie analytique
DEF

Signal de sortie d’un système de mesurage.

OBS

La réponse chromatographique est la surface de pic ou la hauteur de pic pour un certain constituant.

OBS

réponse : terme et définition normalisés par l'ISO en 2014.

Spanish

Save record 1

Record 2 2011-06-01

English

Subject field(s)
  • Analytical Chemistry
DEF

The number of completely resolved peaks recorded in a predetermined period of time.

OBS

"Peak capacity" refers to the chromatographic column of defined efficiency.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 2

Record 3 2011-02-11

English

Subject field(s)
  • Analytical Chemistry
DEF

The time required for a solute peak to pass through a chromatographic column and reach the detector.

OBS

retention time: abbreviation tR.

PHR

Adjusted, relative retention time.

Key term(s)
  • total retention time
  • total uncorrected retention time

French

Domaine(s)
  • Chimie analytique
DEF

Temps d'élution au sommet du pic, mesuré à partir de l'injection.

OBS

Temps de rétention: abréviation tR.

Spanish

Save record 3

Record 4 2010-06-10

English

Subject field(s)
  • Analytical Chemistry
DEF

The portion of a differential chromatogram recording the detector response when a single component is eluted from the column.

OBS

If separation is incomplete, two or more components may be eluted as one unresolved peak.

PHR

Peak broadening, purity, tailing.

PHR

Coeluting, overlapping chromatographic peak.

PHR

Attenuate the peak.

PHR

Radioactive, symmetrical, very sharp peak.

French

Domaine(s)
  • Chimie analytique
DEF

Partie d'un chromatogramme différentiel enregistrant la réponse du détecteur ou la variation de la concentration de l'effluent lorsqu'un composé sort de la colonne.

OBS

Si la séparation est incomplète, deux ou plusieurs composés peuvent apparaître dans un seul pic, peu ou mal résolu.

CONT

Si les conditions d'équilibre thermodynamique sont remplies de façon idéale, les molécules du soluté se dispersent de façon gaussienne et leur distribution à la sortie de la colonne peut être figurée par une courbe de Gauss, qui est un pic. Comme les conditions d'équilibre thermodynamique ne sont que rarement idéales, les pics sont légèrement déformés soit vers l'aval (traînée), soit vers l'amont (front diffus).

PHR

Repérer un pic.

PHR

Pic chromatographique, déformé, dissymétrique, espacé, fantôme, gaussien, large, négatif, non gaussien, pleine échelle, positif.

PHR

Pic d'air, d'élution sans étalonnage préalable, du chromatogramme.

PHR

Allure, amplitude, élution, enregistrement, étalement, exaltation, hauteur, largeur, queue, résolution, séparation, sommet, surface, tête, unicité, volume de rétention (des, d'un, de, du) pic.

Spanish

Campo(s) temático(s)
  • Química analítica
Save record 4

Record 5 2006-02-21

English

Subject field(s)
  • Analytical Chemistry
CONT

Piezoelectric Sorption Detector. Piezoelectric quartz crystal, long used as frequency and time standards to one part in 108 or better, have been shown by King to be selective gas detectors when coated with various chromatographic liquid phases. Used as detectors, such coated crystals have several advantages :(1) sensitivity increases with solute or sample boiling point,(2) detectors selective to compound type can be made with response times of the order of 0. 05 sec, and(3) the output signal is a frequency which simplifies integration of peak areas and digital presentation of data.

Key term(s)
  • piezo-electric sorption detector

French

Domaine(s)
  • Chimie analytique
OBS

piézoélectrique : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

Key term(s)
  • détecteur piézo-électrique

Spanish

Save record 5

Record 6 1999-04-26

English

Subject field(s)
  • Analytical Chemistry
  • Chemistry
CONT

Some UV spectrophotometric detectors(e. g. Hewlett-Packard) are designed to allow spectral scanning of chromatographic peaks during the separation, using a stop-flow technique. Depending on the equipment, the peak trapped in the cell can be manually or automatically scanned, to provide information regarding the optimum wavelength and identity of the component.

French

Domaine(s)
  • Chimie analytique
  • Chimie

Spanish

Save record 6

Record 7 1997-11-28

English

Subject field(s)
  • Analytical Chemistry
CONT

By monitoring a desired adsorption frequency and adjusting the spectrophotometer's chart speed to equal that of a thermal conductivity cell placed in the gas stream, the absorption curves represent integrals of the absorbing components since each successive fraction is accumulated in the infrared cell and the front of the mass or chromatographic peak was matched with the initial increase in adsorbance.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 7

Record 8 1996-03-25

English

Subject field(s)
  • Analytical Chemistry
CONT

Difference between zone centers, [...] where the zone or chromatographic peak center is at the peak maximum for a Gaussian-shaped curve.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 8

Record 9 1985-10-01

English

Subject field(s)
  • Water Pollution
DEF

the period that water or wastewater, at a given hydraulic loading, will be retained in a reactor, unit process, or facility.

CONT

The time that elapses between sample introduction and the appearance of the chromatographic peak belonging to a component is the retention time of that component. The retention time of a compound under a fixed set of operating conditions is a reproducible quantity.... The retention time of a component is therefore used for its qualitative identification.

French

Domaine(s)
  • Pollution de l'eau
DEF

Durée théorique du séjour de l'eau dans un bassin ou un réservoir, déterminée en divisant la capacité du bassin ou du réservoir, par le débit de l'eau entrée ou sortie.

Spanish

Save record 9

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