Abstract: Analytical instruments configured to perform atmospheric pressure ionization are provided that are less than 50 kgs in total weight and/or less than 1 m3 in total volume. Mass analysis instruments are provided that can include an interface vacuum structure operatively coupled between an ionization source and a vacuum region housing a detector. Mass analysis instruments are also provided that can include an ionization source coupled to an analysis region via an interface vacuum structure, with at least two independent vacuum components.
Abstract: Portable devices and related methods for collecting and storing atmospheric samples for subsequent chemical analysis are provided. A sample cartridge according to one implementation includes self-sealing inlet and outlet ports configured to close automatically when not in use, and a sample retention portion between the inlet and outlet ports that is adapted to trap an atmospheric sample. The sample cartridge may also include a memory device for recording data regarding the sample. Another embodiment provides a portable sampler configured to removably secure a self-sealing sample cartridge. A portable sampling device may also be used with an analytical instrument. The analytical instrument may analyze the sample and read the data recorded on the sample cartridge's memory.
Type:
Grant
Filed:
June 27, 2008
Date of Patent:
April 3, 2012
Assignee:
Griffin Analytical Technologies, LLC
Inventors:
Matthew Briscoe, Brent Rardin, Dennis Barket, Jr.
Abstract: In one implementation, processes for designing mass separators from a series of mass separator electric field data and processes for designing an ion trap from a range of data pairs and a mass analyzer scale are provided. Methods for producing mass separators including ion traps having Z0/r0 ratios from about 0.84 to about 1.2 are also provided. Mass spectrometers are al provided that can include mass separators in tandem with one being an ion trap having a Zo/ro ratio between 0.84 and 1.2. The present invention also provides methods for analyzing samples using mass separators having first and second sets of components defining a volume with a ratio of a distance from the center of the volume to a surface of the first component to a distance from the center of the volume to a surface of the second component being between 0.84 and 1.2.
Type:
Grant
Filed:
December 2, 2003
Date of Patent:
November 13, 2007
Assignee:
Griffin Analytical Technologies, LLC
Inventors:
James Mitchell Wells, Garth E. Patterson
Abstract: The disclosure relates to instrument assemblies that can include a sample introduction port coupled to a chamber configured to receive the sample from the sample introduction port and provide analysis of the sample with a valve between the sample introduction port and the chamber. The instrument assemblies can include a septum housing assembly coupled to an analysis chamber interface with the interface including a valve and a cam rotatably mounted to the septum housing assembly and/or coupled to the valve. Analysis methods are also provided that can include introducing a sample to an instrument through both a sample introduction port and a valve coupled to the sample introduction port, and, after introducing the sample, closing the valve to seal the sample introduction port from a remainder of the instrument, with the remainder of the instrument being configured to analyze the sample after the introducing through the sample introduction port.
Type:
Grant
Filed:
June 13, 2005
Date of Patent:
September 18, 2007
Assignee:
Griffin Analytical Technologies, LLC
Inventors:
Mark Gregory, Dennis Barket, John W Grossenbacher, Anthony Cochran