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Martin Hofmann, Manfred Spraul, Marcus Godejohann: Device for trapping at least one component of a chromatography flow in an LC/NMR environment. Bruker Analytik, Weingarten Schurgin Gagnebin & Lebovici, September 2, 2003: US06614228 (33 worldwide citation)

A device for trapping at least one chromatography peak of a chromatography flow comprises at least one trapping column, an inlet capillary for leading the chromatography flow into the trapping column and an outlet capillary departing from the trapping column. A plurality of trapping columns are prov ...


2
Manfred Spraul, Martin Hofmann: Directly coupled sample changer system for fluid NMR spectroscopy. Bruker Analytische Messtechnik, Cesari and McKenna, March 14, 1995: US05397989 (25 worldwide citation)

An NMR spectrometer (10) for the measurement of liquid samples having a probe head (20) exhibiting an upper and a lower support (21 or 22), a connector (5) for a feed conduit (15) for the introduction of a liquid sample (1) into the spectrometer (10) and a connector (6) for a drain conduit (16) for ...


3
Manfred Spraul, Martin Hofmann: Device for feeding a chromatography flow. Bruker Analytik, Weingarten Schurgin Gagnebin & Lebovici, June 11, 2002: US06402946 (23 worldwide citation)

A device for feeding a chromatography flow coming from a flow source, in particular from a liquid chromatography (LC) separating unit or a peak sampling or trapping unit, in part to at least a first decision detector unit and/or at least a first destination detector unit, and in part to at least a s ...


4
Josef Schratzenstaller, Otto Ambrosius, Martin Hofmann, Heinz Gunther Franz, Horst Laucht, Robert Rieger, Reinhard Seiferth: Method and apparatus for adjusting the sighting device in weapon systems. Messerschmitt Bolkow Blohm, Evenson Wands Edwards Lenahan & McKeown, June 2, 1992: US05118186 (22 worldwide citation)

A method and apparatus for adjusting an aiming telescope and a laser range finder with a weapon system which is equipped with a weapon computer, a data memory and a computer-controlled graticule adjusting device. Laser beams are fired consecutively by a collimation line testing device and by the las ...


5
Martin Hofmann, Manfred Spraul: Apparatus for coupled liquid chromatography and nuclear magnetic resonance spectroscopy measurements. Bruker Analytische Messtechnik, Walter A Hackler, February 1, 1994: US05283036 (18 worldwide citation)

Apparatus is provided for coupled liquid chromatography and nuclear magnetic resonance (NMR) spectroscopy measurements. The apparatus includes a liquid chromatograph, an intermediate storage device for intermediately storing of components of a probe eluent and an NMR spectrometer. Selected intermedi ...


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Martin Hofmann, Manfred Spraul, Robert Eric Nast, Damon Leslie Harris: Flow-through cryogenic NMR probe. Bruker Biospin Corporation, Kudirka & Jobse, January 4, 2005: US06838880 (15 worldwide citation)

A nuclear magnetic resonance (NMR) spectroscopy probe has a sample cell into and out of which a room temperature liquid sample may be directed. The cell is surrounded by a radio frequency coil that is used to perform NMR measurements of the liquid sample, and which is maintained at cryogenic tempera ...


8
Martin Hofmann, Manfred Spraul: Sample head for flowthrough NMR spectroscopy. Bruker Analytische Messtechnik, Thomas R Vigil, November 2, 1993: US05258712 (10 worldwide citation)

The invention concerns head for flowthrough NMR spectroscopy in which there is provided, in the interior of a vessel, a replaceable quartz cuvette which can be separated from the vessel, and eluent inflow and outflow tube, and a measurement coil, and which has end sections which seal with respect to ...


9
Martin Hofmann, Ernst Ulrich Braumann: NMR microsample holder which allows safe and simple exchanges of the sample tube. Bruker Biospin, Paul Vincent, May 25, 2004: US06741079 (7 worldwide citation)

The invention concerns an NMR sample holder for NMR samples with a short sample tube of constant diameter which is clamped in a largely gas-tight fashion and with a movable plunger and a rotor. The inventive device increases flexibility compared to conventional sample holders, reduces the vapor volu ...


10
Manfred Spraul, Martin Hofmann: Apparatus for measuring chemical and/or physical reaction sequences by nuclear magnetic resonance spectrometry. Bruker Analytische Messtechnik, Walter A Hackler, March 30, 1993: US05198766 (5 worldwide citation)

The invention relates to an apparatus for measuring chemical and/or physical reaction sequences by nuclear magnetic resonance spectrometry and comprises a reaction path (1), a nuclear magnetic resonance spectrometer (2) and at least one reaction chamber (10) which is located in the reaction path, wh ...