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  • Oceanic Trace Gas Measurements by Membrane Inlet Mass Spectrometry (.pdf)
    : Methanogenesis, Methane oxidation. 4. sinking. Gases as. Respiration. Physical Tracers. CH. →. 2O + O2. CO2 + H2O. CFC’s, / He: Ocean circulation. N / Ar / O : Bubble injection. 2. 2. Gas Measurement in seawater. • Many highly sensitive, accurate, and precise techniques exist: Gas Chromatography (N
  • Primary Vacuum Pumping in Mass Spectrometry Systems (.pdf)
    . Gas-ballast control. Specific Vacuum Requirements. There are several performance requirements for vacuum sys-. Exhaust. tems used with mass spectrometers. Voltage selection. Capacity. This refers to the nominal pumping speed of the. pump or, more importantly and specifically, the throughput. Figure
  • High Resolution Mass Spectrometry for the Detection of Pharmaceuticals in Water
    of Agilent Q-TOF mass spectrometers and software tools has enabled the. Center for Environmental Mass. identification and characterization of more than 100 pharmaceuticals and their. Spectrometry. metabolites in water sources at concentrations as low as parts per trillion (ppt),. Department
  • Critical Leak Requirements in GC/MS, LC/MS and Analytical Instruments (.pdf)
    Gas Chromatography/Mass Spectrometry (GC/MS) and Liquid Chromatography/Mass Spectrometry (LC/MS) are analytical techniques used for chemical analysis. The properties of a sample are first separated using chromatography and then identified with the mass spectrometer. The equipment used
  • Reducing Time Jitter in Time-of-Flight Detectors (.pdf)
    The effects of time jitter on time-of-flight mass spectrometer detectors is examined. Improvements to both microchannel flatness and ion arrival time. Improving TOF Mass Resolution by Reducing Ion Detector Time Jitter - - Chromatography Online. Stay Connected. * Browse Archives. * Application Notes
  • Analytical techniques
    chromatography (GC), and mass spectrometry (MS). While there are other methods in use today and others under development, those mentioned here are the workhorse methods in process analytical chemistry and have been in everyday use, 24 hours per day, 365 days per year for making process analytical
  • Medical Device Link .
    biological sensor, a suitcase time-of-flight (TOF) mass spectrometer, a chip-scale diagnostic platform produced by the Biochip Technology Center at (Argonne, IL), and advanced photonics sensors. This article will look at developments in each of these technologies, as well as those in older technologies
  • Comprehensive Analysis of Persistent Organic Pollutants in Complex Matrices Using GC with High-Performance TOF-MS
    interferences as well as variation. among technicians. Here we demonstrate a procedure that incorporates. a QuEChERS extraction, cartridge solid-phase extraction. (cSPE) cleanup and gas chromatography-time-of-flight mass spectrometry. (GC-TOFMS), resulting in good recoveries for a wide range

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