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GAS DISCHARGE DEVICE [1 record]
Record 1 - internal organization data 2025-05-13
Record 1, English
Record 1, Subject field(s)
- Physics
- Analytical Chemistry
Record 1, Main entry term, English
- atmospheric pressure chemical ionization
1, record 1, English, atmospheric%20pressure%20chemical%20ionization
correct, noun
Record 1, Abbreviations, English
- APCI 1, record 1, English, APCI
correct, noun
Record 1, Synonyms, English
- atmospheric pressure chemical ionisation 2, record 1, English, atmospheric%20pressure%20chemical%20ionisation
correct, noun
- APCI 2, record 1, English, APCI
correct, noun
- APCI 2, record 1, English, APCI
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
APCI is a mode of ionization that is similar to ESI [electrospray ionization] in that ionization takes place at atmospheric pressure, entails nebulization and desolvation, and incorporates an interface design, which is similar to that of ESI. A key difference between APCI and ESI is that ESI is based on ions that are formed in solution, whereas APCI uses ions that are formed in the gas phase. In APCI, instead of high voltage being applied to the inlet capillary, mobile phase from the separation device is evaporated within a heater, and the vapor passes a needle with an applied current, which generates a corona discharge for the formation of stable reaction ions. 3, record 1, English, - atmospheric%20pressure%20chemical%20ionization
Record 1, French
Record 1, Domaine(s)
- Physique
- Chimie analytique
Record 1, Main entry term, French
- ionisation chimique à pression atmosphérique
1, record 1, French, ionisation%20chimique%20%C3%A0%20pression%20atmosph%C3%A9rique
correct, feminine noun
Record 1, Abbreviations, French
- APCI 1, record 1, French, APCI
feminine noun
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
L'ionisation par APCI [...] se fait grâce à une décharge couronne. Ce type de décharge se forme lorsqu'on applique une haute tension sur une aiguille. Le champ électrique à la pointe de l'aiguille devient alors suffisamment intense qu'il se produit une décharge dans l'air, ionisant ses composantes. Ces ions peuvent ensuite réagir avec les molécules neutres de l'air pour former d'autres ions et même ioniser un analyte gazeux introduit près de la décharge couronne. 2, record 1, French, - ionisation%20chimique%20%C3%A0%20pression%20atmosph%C3%A9rique
Record number: 1, Textual support number: 2 CONT
Contrairement à l'ESI [ionisation par électronébulisation], où l'ionisation des molécules s'effectue en solution, l'APCI conduit à la formation d'ions en phase gazeuse. 3, record 1, French, - ionisation%20chimique%20%C3%A0%20pression%20atmosph%C3%A9rique
Record number: 1, Textual support number: 1 OBS
APCI : L'abréviation «APCI» provient du terme anglais «atmospheric pressure chemical ionization». 4, record 1, French, - ionisation%20chimique%20%C3%A0%20pression%20atmosph%C3%A9rique
Record 1, Spanish
Record 1, Textual support, Spanish
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