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Gsf-forschungszentrum Fur Umwelt Und Gesundheit, Gmbh

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

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

Gsf - Forschungszentrum for Unwelt Und Gesundheit Gmbh

Gsf-forschungszentrum Fur Umwelfund Gesundheit Gmbh

Antonius Kettrup

Ralf Zimmermann

Ulrich Boesl

Egmont Rohwer

Ralph Dorfner

Hans J&ouml;rg Heger

Eberhard Bengsch

Hans-Peter Bipp

Ralf Dorfner

Klaus Fischer

J&uuml;rgen Polster

Klaus Hafner

Jurgen Polster

Peter Riemschneider

Fabian M&uuml;hlberger

Klaus Troster

Ralf Zimmerman

Jorg Heger

Dieter Bieniek

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 and apparatus for detecting compounds in a gas stream, the gas stream with the compounds to be detected is conducted into an ionization chamber of a mass spectrometer where the gas stream is subjected in the ion chamber in a pulsed manner alternately to UV laser pulses and to vacuum ultraviolet VUV laser pulses and the ions generated thereby are directed into the mass spectrometer for detection therein to determine the compounds in the gas stream.

Method and device for detecting compounds in a gas stream

In a gas inlet structure for an ion source, including a capillary for the admission of a sample gas, which capillary is disposed in a guide tube for discharging a sample gas into the guide tube, the guide tube has an open end disposed in the ion source. The guide tube includes a valve for the pulsed admission of a carrier gas to the guide tube. The guide tube, the valve and the capillary are supported in a sealed support housing from which the guide tube with the capillary disposed therein projects into the ion source for supplying thereto the sample gas in a pulsed manner.

Gas inlet for an ion source

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

In a process for determining the number of components involved in the formation of peaks, bands, and signals which are obtained in spectrograms where energy-correlated measurement values, such as extinctions, increase and decrease as a function of an evolving parameter, such as time, four different measurement values with at least three evolving parameter values are determined, three differences are formed from the four energy-correlated measurement values on the basis of the same evolving parameter, two quotients are formed from the respective differences and the two quotients are plotted over one another in a diagram, whereby a point is obtained if one component is responsible, a straight line is formed if two components are responsible and a curve is formed if more than two components are responsible for the formation of the peaks, bands, or signals.

Process for determining the number of components in peaks, bands, and signals of chromatograms, electrograms, and spectrograms

A method of treating plants to raise their resistance to viroids and to protect them from the effects of viroid infections by administering bioassimilable boron compounds to the plants.

Method of treating viroid infections with bioassimilable boron compounds

In a method and apparatus for the analytical determination of trace compounds, portions of a sample disposed on a sample carrier are irradiated with light having an energy density of 1 to 100 MW/cm.sup.2 so that any organic trace compounds are removed from the irradiated sample portions, the removed trace compounds are collected by a capillary which is adjustably supported so as to be movable in close proximity to the irradiated sample portion and the organic trace compounds collected by the capillary are supplied to an analysis apparatus for detection.

Method and apparatus for the analytical determination of traces

In a method for reducing the content of heavy metals of solid materials, particularly of soils, a 0.1-10% aqueous solution of chemically modified biomasses of waste and residue materials is applied to the solid material whereby the heavy metals are released and extracted from the solid material. The biomass solution residues remaining in the solid material after the heavy metal extraction procedure is rapidly biodegradable so that no objectionable traces remain in the solid materials or soils.

Growing community of inventors

Arnsberg, Germany

Antonius Kettrup