TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A device for determining X-ray intensity as a function of the energy of the radiation.  1, record 1, English, - energy%2Ddispersive%20X%2Dray%20spectrometer

Record number: 1, Textual support number: 1 CONT

Electron column instruments attached with wavelength-dispersive or energy-dispersive spectrometers may be used for the analysis of Portland cement clinkers.  2, record 1, English, - energy%2Ddispersive%20X%2Dray%20spectrometer

Record number: 1, Textual support number: 1 OBS

energy-dispersive X-ray spectrometer; EDS: designations and definition standardized by ISO.  3, record 1, English, - energy%2Ddispersive%20X%2Dray%20spectrometer

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Appareil permettant de déterminer l'intensité des rayons X en fonction de l'énergie du rayonnement.  2, record 1, French, - spectrom%C3%A8tre%20X%20%C3%A0%20dispersion%20d%27%C3%A9nergie

Record number: 1, Textual support number: 1 CONT

[...] la composition chimique de la kaolinite, elle est déterminée en microscopie électronique à transmission à l'aide d'un spectromètre X à sélection d'énergie.  3, record 1, French, - spectrom%C3%A8tre%20X%20%C3%A0%20dispersion%20d%27%C3%A9nergie

Record number: 1, Textual support number: 1 OBS

spectromètre X à dispersion d'énergie; EDS : désignations et définition normalisées par l'ISO.  4, record 1, French, - spectrom%C3%A8tre%20X%20%C3%A0%20dispersion%20d%27%C3%A9nergie

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 CONT

Cuando el análisis se realiza midiendo la longitud de onda del rayo X , se utiliza el espectrómetro por dispersión de longitud de onda de rayos X (WDS), que consta de cristales de difracción que separarán los rayos X emitidos por la muestra de acuerdo con su longitud de onda. Cuando se mide la energía del rayo X, se utiliza el espectrómetro por dispersión de energía de rayos X (EDS) […]  1, record 1, Spanish, - espectr%C3%B3metro%20por%20dispersi%C3%B3n%20de%20energ%C3%ADa%20de%20rayos%20X

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

Instrument used to monitor and quantify the products eluted from a chromatography column. Techniques used are based on the physical, chemical or biological properties of the molecules and may involve prior conversion by chemical or enzymic means to produce a coloured or fluorescent complex. Physical methods include the use of spectrophotometers, colorimeters, spectrophotofluorometers, refractometers, polarimeters, etc.  3, record 2, English, - chromatographic%20detector

Record number: 2, Textual support number: 1 CONT

Biological molecules may be monitored using enzyme-linked reactions specific for the required class of compound. Such detectors often include a flow cell so that the fluid passes continuously from the column through the detector. Several types of detector have been developed specifically for use with gas/liquid chromatographs. These include flame ionization and electron capture devices or, where information is required on the exact structure of the compounds, a mass spectrometer. Many are linked to microprocessors for control of the chromatographic analysis, as well as direct computation of results.  3, record 2, English, - chromatographic%20detector

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Appareil servant à déceler, à révéler la présence d'un corps dans un échantillon.  2, record 2, French, - d%C3%A9tecteur

Record number: 2, Textual support number: 1 CONT

Les détecteurs en chromatographie [...] mettent en évidence les constituants du mélange. Un bon détecteur doit être stable, sensible, linéaire, pratique d'emploi et ne doit pas altérer les séparations réalisées par la colonne.  2, record 2, French, - d%C3%A9tecteur

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Thermionic or Electron Impact Detector. In 1957, Ryce and Bryce described a sensitive ionization gauge based on the ionization potentials of vapors. It comprised a filament, a grid, and a plate. The potential difference between the filament and grid accelerated electrons which may ionize any gas in their path. If the grid potential is maintained at a level insufficient to ionize the helium carrier gas... no current flows in the plate circuit. If a potential difference of 18 V is maintained between the filament and the grid, compounds of lower ionization potential in the helium will be ionized and the positive ions produced will yield a cathode current, the current noted being a measure of the ion concentration. Into the modified ionizing chamber, operated at reduced pressure, a small fraction of the column effluent gas stream(less than 0. 5%) was allowed to flow into the gauge through a controlled leak. Over a 0. 02-l. 5 mm Hg pressure range, the sensitivity was approximately proportional to the pressure, and sensitivities in the range of 10[ minus superscript 12] mole were claimed.  1, record 3, English, - electron%20impact%20detector

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

Lovelock developed a small detector intended for use with open tubular columns, and a new triode detector having a sensitivity 1000 times greater than his original detector... The triode detector... incorporates a ring electrode, in addition to the normal anode and cathode electrodes, which separates the background current(positive ions liberated by vapor/metastable argon reactions or collisions) of the primary electron stream from the signal current. Basically, both detectors are similar to the simple device in design : their brass or stainless steel chambers function as cathodes; their anodes of the same material are supported coaxially within the chamber by a polytetrafluoroethylene insulator; both contain ports for introduction and escape of the chromatographic column gas effluent from the detectors; and each have a suitable source of alpha or beta radiation.  1, record 4, English, - triode%20detector

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Organics captured on particulate filters or gas traps are dissolved in an organic solvent, passed through a column which separates compounds by their solubilities and detected by burning the output in a flame or by electron capture techniques.  1, record 5, English, - electron%20capture%20technique

Record 5,  Textual support,  French

Record 5,  Textual support,  Spanish