Improvements in or relating to sift-ms instruments

Details Improvements in or relating to sift-ms instruments Improvements in or relating to sift-ms instruments

H - Electricity

01

J

H01J 49/40 (2006.01)

Patent

CA 2546645

A SIFT or SIFDT apparatus in which the upstream quadrupole and the downstream quadrupole are housed within a single evacuated chamber (20) with the upstream quadrupole (22) being connected to the downstream quadrupole (29) by a curved flow tube (24). In a preferred form the interior of the chamber is divided into sections by an electrostatic shield (27) which shields the upstream quadrupole and source connection from the downstream quadrupole and detector.

La présente invention concerne un appareil SIFT ou SIFDT dans lequel le quadrupôle amont et le quadrupôle aval sont logés dans une seule chambre sous vide (20), lequel quadrupôle amont (22) est connecté au quadrupôle aval (29) par un tube d'écoulement courbe (24). Dans un mode de réalisation préféré, l'intérieur de la chambre est divisé en sections par un écran électrostatique (27) qui protège le quadrupôle amont et la connexion source du quadrupôle aval et du détecteur.

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