Institut de Chimie Moléculaire et des Matériaux d'Orsay
 

TSQ (Thermo Scientific. 2009)



   

Contacts:

Tanya INCEOGLU - Send an email

Build.: 410 groundfloor


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Source: ESI (Electrospray) ou APCI (Ionisation Chimique à Pression Atmosphérique)

Analyser: tandem - triple quadrupole

Masse range: m/z 30-3000

What you get: This gives the pseudo molecular ions MH+ and MNa+ (and MK+). Using MS/MS mode, one can obtain structural information.

Principle:

In ESI, an electric field acts on droplets (solvent + solute) going out of the capillary. The solvent is evaporated by a collision with an inert gas. The droplets are split up to lead completely toion desolvation and possibly multicharged. In APCI, the molecules are ionized from corona electrode discharge.

Options: Introduction of the sample by liquid chromatography + automatic sample exchanger (Accela Thermo Scientific) or direct injection.