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Discontinuous atmospheric pressure interface

WebSep 17, 2013 · The understanding of the gas dynamics of the atmospheric pressure interface is very important for the development of mass spectrometry systems with high sensitivity. While the gas flows at high pressure (>1 Torr) and low pressure (<10–3 Torr) stages are relatively well understood and could be modeled using continuum and … WebJun 1, 2009 · The discontinuous atmospheric pressure interface (DAPI) [5, 6] allows the transfer of ions, generated at atmospheric pressure, into the miniature mass …

Discontinuous Abbreviation - 3 Forms to Abbreviate Discontinuous

WebAdapted and commercialized Discontinuous Atmospheric Pressure Interface Linear Ion Trap Mass Spectrometer (the project was dropped … WebDec 5, 2024 · The performance of a miniature mass spectrometer in atmospheric analysis is closely related to the design of its sampling system. In this study, a simplified vacuum electrospray ionization (VESI) source was developed based on a combination of several techniques, including the discontinuous atmospheric pressure interface, direct … bus keswick to coniston https://axiomwm.com

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WebJan 7, 2024 · The pressure conditions are important for performing a variety of ion manipulations in mass spectrometers including ion transfer, ion dissociation and mass analysis. In contrast with lab-scale... WebFeb 1, 2024 · Here, the concept of continuous sub-atmospheric pressure interface (CSAPI) was proposed and applied to design a miniature ion trap mass spectrometer. Specifically, a sealed ionization chamber is installed outside the sampling interface of a conventional mini CAPI-MS. WebNov 1, 2024 · These instruments adopt different atmospheric pressure interfaces (APIs), which are membrane inlets (MIs), discontinuous atmospheric pressure interface (DAPI) and continuous atmospheric pressure interface (CAPI). This review emphasizes on the mini mass spectrometry (MS) system that can be handheld by one person, but not the … busker whiskey

US8304718B2 - Discontinuous atmospheric pressure interface

Category:Developing a Vacuum Electrospray Source To Implement Efficient ...

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Discontinuous atmospheric pressure interface

Discontinuous Subatmospheric Pressure Interface Reduces the …

WebApr 20, 2024 · Herein, a novel on-demand MS analysis method was developed based on discontinuous ion injection-induced ESI on a miniature MS system. Highly efficient ionization was enabled under low voltages (<300 V) using a discontinuous atmospheric pressure interface. On-demand ionization showed comparable sensitivity with regular … WebFeb 17, 2015 · A miniature capillary electrophoresis mass spectrometry (CE/MS) system has been developed in this work. A 100% electrical driven miniaturized CE device was integrated with a miniature MS instrument, which has a discontinuous atmospheric pressure interface (DAPI) for coupling with atmospheric pressure ionization sources.

Discontinuous atmospheric pressure interface

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WebThe performance of mass spectrometers with limited pumping capacity is shown to be improved through use of a discontinuous atmospheric pressure interface (DAPI). A … WebAnother aspect of the invention provides a method of discontinuously transferring ions at atmospheric pressure into a trapping device at reduced pressure, the method …

WebDec 7, 2024 · Discontinuous atmospheric pressure interface (DAPI), consisting of a pinch valve, a silicone tube, and two metal capillaries, is a common inlet for miniature ion trap mass spectrometers (ITMS). WebWhat does DAPI abbreviation stand for? List of 32 best DAPI meaning forms based on popularity. Most common DAPI abbreviation full forms updated in February 2024

WebAug 1, 2010 · The discontinuous atmospheric pressure interface (DAPI) has allowed the transfer of ions from atmospheric pressure ionization sources to an ion trap mass …

WebNov 24, 2024 · Discontinuous atmospheric pressure interface (DAPI) consisting of a pinch valve, a silicone tube, and two metal capillaries has been widely used in miniature mass spectrometry. It is interesting that …

WebJun 15, 2010 · The system was fitted with a discontinuous atmospheric pressure interface to allow external ionization by desorption electrospray ionization (DESI). It was used to identify the explosives 2,4,6-trinitrotoluene (TNT), 2,4,6-trinitrophenyl-N-methylnitramine (Tetryl), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX) … cbs sunday morning rubics cubeWebAbstract The discontinuous atmospheric pressure interface (DAPI) has been developed as a facile means for efficiently introducing ions generated at atmospheric pressure to an ion trap in vacuum [e.g., a rectilinear ion trap (RIT)] for mass analysis. cbs sunday mornings hostWebAug 1, 2024 · The discontinuous atmospheric pressure interface (DAPI) is especially suitable for miniature ion trap devices, because the change of gas pressure during a discontinuous injection can match the operation steps of the trap analyzer [10, 12, 19 ]. cbs sunday morning s2021 e48WebJan 21, 2024 · A discontinuous subatmospheric pressure interface (DSPI) was developed to reduce the gas flow effects and improve the comprehensive performance of the miniature CAPI ion trap mass spectrometer. In the range of miniature mass spectrometers, the miniature ion trap mass spectrometer with continuous atmospheric pressure interface … busketeers plymouthWebA systematic investigation of the optimization of M-DAPI was performed. The primary parameters affecting the performance of M-DAPI were optimized and sensitivity and … cbs sunday morning show 8/28/22WebJun 1, 2009 · The discontinuous atmospheric pressure interface (DAPI) [5, 6] allows the transfer of ions, generated at atmospheric pressure, into the miniature mass spectrometer and, hence, direct analysis... bus keswick to windermereWebJul 1, 2008 · The discontinuous atmospheric pressure interface (DAPI) is especially suitable for miniature ion trap devices, because the change of gas pressure during a … cbs sunday morning show 5/29/2022