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ATOMIC ABSORPTION SPECTROMETER [1 record]
Record 1 - internal organization data 2000-09-26
Record 1, English
Record 1, Subject field(s)
- Optics
- Measuring Instruments
Record 1, Main entry term, English
- atomic absorption spectrometer
1, record 1, English, atomic%20absorption%20spectrometer
see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
An atomic absorption spectrophotometer measures element concentrations in solution by spraying (nebulising) the solution into a long narrow hot flame. Light from a hollow cathode lamp, containing the element to be analysed, passes above the long and narrow burner to a monochromator. The monochromator isolates ground state radiation from the hollow cathode lamp. The solution is sprayed into the fuel and air premixing chamber feeding the flame. Free atoms are produced in the flame because of the heat and reducing conditions. If the atoms are the same as the element in the lamp, then light is absorbed. The degree of absorption depends on the amount of that element present in the original solution. The results are compared with standard solutions which allow concentrations to be determined. The technique can be highly precise and accurate. 2, record 1, English, - atomic%20absorption%20spectrometer
Record number: 1, Textual support number: 1 OBS
An instrument used in the restoration of art works. 3, record 1, English, - atomic%20absorption%20spectrometer
Record 1, Key term(s)
- atomic absorption spectrographic equipment
Record 1, French
Record 1, Domaine(s)
- Optique
- Appareils de mesure
Record 1, Main entry term, French
- spectromètre d'absorption atomique
1, record 1, French, spectrom%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 DEF
Spectromètre permettant d'effectuer une analyse chimique en vaporisant un échantillon, habituellement sous forme liquide, dans un flacon et en mesurant l'absorption par les atomes non excités dans la vapeur de différentes longueurs d'ondes résonantes étroites de la lumière, qui sont caractéristiques d'un élément donné. La quantité d'un élément présent est proportionnelle à la quantité d'absorption par la vapeur. 2, record 1, French, - spectrom%C3%A8tre%20d%27absorption%20atomique
Record 1, Spanish
Record 1, Textual support, Spanish
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