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ATOMIC ABSORPTION SPECTROPHOTOMETER [1 record]
Record 1 - internal organization data 1987-05-25
Record 1, English
Record 1, Subject field(s)
- Optics
- Analytical Chemistry
- Nuclear Medicine
Record 1, Main entry term, English
- atomic absorption spectrophotometer
1, record 1, English, atomic%20absorption%20spectrophotometer
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The basic components of an atomic absorption spectrophotometer are the light source, the vaporizer, the monochromator, and the detector. 1, record 1, English, - atomic%20absorption%20spectrophotometer
Record 1, French
Record 1, Domaine(s)
- Optique
- Chimie analytique
- Médecine nucléaire
Record 1, Main entry term, French
- spectrophotomètre d'absorption atomique
1, record 1, French, spectrophotom%C3%A8tre%20d%27absorption%20atomique
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Une nouvelle utilisation de la flamme en spectrochimie est la spectrophotométrie d'absorption atomique (...). Lorsqu'une radiation spectrale de fréquence donnée traverse une enceinte d'atomes, la résonance s'accompagne d'une absorption de radiation incidente. La flamme est utilisée comme source d'atomes neutres susceptibles d'absorber spectralement aux longueurs d'onde de leurs raies de résonance. La source est une lampe à cathode creuse qui émet le spectre de l'élément à déterminer. Sa lumière traverse la flamme dans laquelle l'échantillon est vaporisé. Un monochromateur isole une des raies de résonance. On mesure l'intensité de la raie avant et pendant la vaporisation de la solution. On détermine alors le coefficient d'absorption atomique à partir du rapport des résultats obtenus. 2, record 1, French, - spectrophotom%C3%A8tre%20d%27absorption%20atomique
Record 1, Spanish
Record 1, Textual support, Spanish
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