Other

Gsf-Forschaungszenfrum F&uuml;r Umwelt Und Gesundheit Gmbh

Gsf - Forschungszentrum for Unwelt Und Gesundheit Gmbh

Ralph Dorfner

Antonius Kettrup

Egmont Rohwer

Ulrich Boesl

Ralf Zimmermann

Hans J&ouml;rg Heger

Ralf Zimmerman

In a capillary valve, which can be pulsed and which includes a capillary with a constriction forming a nozzle, a plunger is movably disposed in the capillary and forms, together with the capillary constriction, a seal, and a drive is provided for actuating the plunger within the capillary providing for a small, rapidly responsive, nozzle valve design.

Capillary valve that can be pulsed

In an arrangement for producing a directional and cooled gas jet in an ion source with a gas inlet or a UV/fluorescence detection cell including a gas inlet, wherein a capillary extends with one end into the interior of the ion source which is evacuated, the one end is provided with a nozzle for discharging a gas sample into the ion source while being subjected to adiabatic cooling and the width of the nozzle opening is at most 40% of the inner diameter of the capillary and the capillary is heatable for preventing condensation of gas sample components in the nozzle.

Gas inlet for reducing a directional and cooled gas jet

In a method for producing a directed gas jet wherein a guided sample gas beam is generated and an auxiliary gas beam is generated and directed and guided in the same direction as, but separated from, the sample gas beam, a pulsed carrier gas stream is generated and combined with the sample gas beam such that the sample gas beam is separated into spaced pulses which are embedded between the axially spaced pulses of the carrier gas beam and the carrier gas beam with the sample gas beam embedded therein is combined with the auxiliary gas beam such that the carrier and sample gas beam is radially enveloped by the auxiliary gas beam to from the directed gas jet of a carrier and sample gas pulses enveloped in the auxiliary gas beam.

Method and device for producing a directed gas jet

Growing community of inventors

Nicolerding, Germany

Ralph Dorfner