1
John S Cottrell, Kuldip K Mock: Method of preparing a sample for analysis. Finnigan MAT, Flehr Hohbach Test Albritton & Herbert, November 9, 1993: US05260571 (19 worldwide citation)

A sample for analysis by Laser Desorption Mass Spectrometry is prepared by applying a substrate material to a target for the mass spectrometer, dissolving the sample material in a solvent and applying the solution to a substrate material on the target to be absorbed thereby. A matrix material is als ...


2
Richard M Caprioli, John S Cottrell: Methods for use in the mass analysis of chemical samples. Spectros, Leydig Voit & Mayer, April 11, 1989: US04820648 (18 worldwide citation)

A probe and method for using the same for supporting a sample in an ion source of a mass spectrometer comprises a target formed by a receptacle for a liquid sample in which the sample passes by diffusion to the high vacuum side of a semipermeable membrane and/or in which the sample is held as a drop ...


3
John S Cottrell, Patrick J Turner, David J Kay: Multiple collector mass spectrometers. Bacon & Thomas, June 18, 1985: US04524275 (15 worldwide citation)

In a mass spectrometer, suitable for use in the determination of isotope ratios, having as a mass selector a sector magnet and detector means for detecting and measuring the intensity of ion beams at two or more positions in the focal plane of said sector magnet, the improvement comprises providing ...


4
John S Cottrell, Peter J Powers: Detergent compositions. Lever Brothers Company, Melvin H Kurtz, November 10, 1981: US04299717 (10 worldwide citation)

The invention relates to a detergent composition in powder or bar form containing a surfactant, an alkali metal carbonate and a low level (1 to 12%) of pyrophosphate, other phosphates being maintained at a level below 5%. A peroxygen bleach and other conventional additives are optionally present. Th ...


5
John S Cottrell, Milton Keynes: Mass spectrometry apparatus and method relating thereto. Flehr Hohbach Test Albritton & Herbert, October 24, 1995: US05461235 (9 worldwide citation)

A mass spectrometry apparatus includes means to irradiate a specimen with a beam of radiation to desorb ions for mass analysis. The apparatus comprises means for deflecting and scanning the beam and attenuator means arranged to vary the attenuation of the beam such that the attenuation is a function ...


6
Richard M Caprioli, John S Cottrell: Apparatus and methods of use in the mass analysis of chemical samples. Kratos Analytical, Leydig Voit & Mayer, March 13, 1990: US04908512 (8 worldwide citation)

A probe for supporting a sample in an ion source of a mass spectrometer comprises a target formed by a copper probe tip for a liquid sample in which the sample passes through a fine bore 18a of the tip on to the end surface of the tip where it is held as a droplet by surface tension. In order to rep ...


7
John S Cottrell, Kuldip K Mock: Method of preparing a sample for analysis by laser desorption mass spectrometry. Finnigan Mat, Flehr Test Hohbach Albritton & Herbert, January 25, 1994: US05281538 (8 worldwide citation)

A sample for analysis by Laser Desorption Mass Spectrometry is prepared by dissolving the sample material in a solvent and applying the solution to a matrix material applied to a target for a mass spectrometer. The matrix material is selected from the group consisting of (i) cis-Cinnamic Acid with t ...


8
John S Cottrell, Peter J Powers: Detergent compositions. Lever Brothers Company, Melvin H Kurtz, November 10, 1981: US04299716 (8 worldwide citation)

The invention relates to a detergent composition in powder or bar form containing a surfactant, an alkali metal carbonate and a low level (1 to 5%) of orthophosphate, other phosphates being maintained at a level below 5%. A peroxygen bleach and other conventional additives are optionally present. Th ...


9
John S Cottrell, Kuldip K Mock: Method of preparing a sample for analysis. Finnigan Mat, Flehr Hohbach Test Albritton & Herbert, May 3, 1994: US05308978 (4 worldwide citation)

A sample for analysis by Laser Desorption Mass Spectrometry is prepared by dissolving the sample material in a solvent and applying the solution to a matrix material. The matrix material is applied to a target for a mass spectrometer prior to the application of the sample solution thereto.