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#author("2021-06-12T19:39:03+09:00","","") [[TopPage]] #author("2021-06-12T19:40:30+09:00","","") Introduction to some major foreign GC-MS products release time: April 16, 2019] reading times: 252 source: Encyclopedia of analysis and testing after more than 40 years of development, GC-MS technology has become increasingly complete. At present, some products and indicators of major manufacturers which still occupy a certain share in the GC-MS international market are listed as follows: (1) hp5973 desktop mass spectrometer / hp5973 n (Network) desktop mass spectrometer (Agilent, formerly HP, USA) mass range: 1.6-800u mass spectrometer: quadrupole. Sensitivity: electron bombardment ionization, full scan 1Pg octafluoronaphthalene, signal-to-noise ratio at least 10:1; selective ion detection (M / z272) 20fg octafluoronaphthalene, signal-to-noise ratio at least 10:1. Vacuum system: molecular turbopump and diffusion pump are optional. Mass axis stability: ± 0.15u (12h) computer operating system: MS-DOS, Microsoft Windows NT. The optional libraries are NIST chemical structures, Wiley Library and standard pesticide libraryPfleger drug library (fuliger drug database, 4370 compounds). Ionization methods: EI (electron bombardment); PCI (positive chemical source); NCI (negative chemical source). Gas chromatography: HP 6890. (2) Amd m-40s / AMD 503 s (AMD intectra GmbH, Germany) quality range: 2200 (acceleration voltage 8Kv); 8800 (acceleration voltage 2KV). Mass spectrometer: double focusing magnetic mass spectrometry resolution: > 60000 (10% Valley) sensitivity: electron bombardment ionization, 1 μ g methyl stearate can produce > 3 × 10-7c charge when the resolution is 1000. Computer operating system: Microsoft Windows ionization methods: EI (electron bombardment); PCI (positive chemical source); NCI (negative chemical source); API (atmospheric chemical ionization for LC-MS ). The orthogonal time-of-flight analyzer is used as a tandem mass spectrometer to provide MS-MS. Chromatography: gas chromatography or liquid chromatography (3) Kodiak 1200 GC-MS-MS (bear Instruments Inc., USA) mass range: 10-800u / 15-1500 mass spectrometer: quadrupole Octopole CAD resolution: mass number 800u, unit mass resolution sensitivity: electron impact ionization, selective ion detection (M / z272) 100The signal-to-noise ratio of FG octafluoronaphthalene > 10, chemical ionization, full scan (M / z90-240) extraction mass number m / z183100pg benzophenone, signal-to-noise ratio > 25. Vacuum system: 250L / S molecular turbopump and Edwards rv3 rotary pump. Computer operating system: Microsoft Windows NT ionization methods: EI (electron bombardment); PCI (positive chemical source); NCI (negative chemical source); API (atmospheric chemical ionization for LC-MS). CAD mode is limited to MS-MS. Chromatography: gas chromatography (hp6080) or liquid chromatography. (4) Finnigan polarisq GC-MS / Tempus TOF MS (thermo quest Corporation, USA) mass range: 10-100 mass spectrometer: ion trap - provides full scan, selective ion detection, multiple mass spectrometry (MSN, Sensitivity: electron bombardment, no split injection, twice a second, full scan (60-400m / z) 10pg decafluorophenol extraction ion M / z362, measured signal-to-noise ratio > 25; positive chemical source, no split injection, twice a second full scan (M / z60-400), 100PG decafluorophenol, extracted ion m / z363, measured signal-to-noise ratio > 10; negative chemical source, no split injection, measured signal-to-noise ratio twice a second (M / z60-400) 1Pg of decafluorophenol, extracted with M/The signal-to-noise ratio of z362 is more than 50. Vacuum system: molecular turbopump. Computer operating system: Microsoft Windows NT ionization method: EI (electron bombardment); PCI (positive chemical source); NCI (negative chemical source); direct injection chromatography: gas chromatography (trace GC thermal power group, USA) optional mass spectrometry Library: American National Institute of standards; William Atlas library; pesticide atlas library; fullegger database. （5）Finnigan Trace MS mass range: 2-1023u resolution: adjustable from 1000u to 2500u mass spectrometer: quadrupole mass spectrometer mass stability: < 0.1u/12h sensitivity: electron bombardment, no split injection, five full scans per second (M / z200-300) 1Pg octafluoronaphthalene extraction ion, M / z272 measured signal-to-noise ratio > 50; positive chemical source, no split injection, two full scans per second (M / z50-350) 1Pg octafluoronaphthalene extraction ion For naphthalene, the signal-to-noise ratio was more than 10 for extraction ion M / z183; for negative chemical source, there was no split injection, and five full scans per second (M / z200-300) were 1Pg for octafluoronaphthalene, and the signal-to-noise ratio was more than 100 for extraction ion M / z362. Vacuum system; molecular turbopump. Computer operating system: Microsoft Windows NT ionization method: EI (electron bombardment); PCI (positive chemical source); NCI (negative chemical source); direct injection chromatography: gas chromatography(trace GC Thermoelectric Group, USA) optional mass spectrometry Library: American National Institute of standards Tempus TOF MS is a new gas chromatography and time-of-flight mass spectrometer launched at Pittsburgh exhibition this year. The specific parameters are unknown. (6) Mat 95 XL mass range: 3500 (acceleration voltage 17.5kv) mass spectrometer: double focusing magnetic mass spectrometry resolution: > 60000 (10% Valley) sensitivity: electron bombardment ionization, resolution 1000, 1 μ g methyl stearate produced > 5 × 10-4c charge; full scan 200 PG methyl stearate, extracted molecular ion (M / z298) signal-to-noise ratio > 800:1. Selective ion detection (M / z321.8937) 100fg1,3,7,8-tcdd + 5pg 13c12-2,3,7,8-tcdd, SNR > 100:1. GC-MS accurate mass number: 2mdarms scanning speed: 0.1-10000s/decade continuously variable computer operating system: Unix v4.0 + CDE ionization method: EI (n electron bombardment); PCI (n positive chemical source); NCI (negative chemical source); API (atmospheric chemical ionization for LC / MS). Ion trap was used as tandem mass spectrometer to provide MS-MS. Vacuum system: mainly molecular turbine pump, diffusion pump can be selected chromatography: gas chromatography (HP6890 or other models) or liquid chromatography (7) aUtospec / Ultima (micromass, UK) mass range: 3000 / 2000 (8Kv acceleration voltage) mass spectrometer: double focusing MS resolution: > 80000 (10% valley bottom). Sensitivity: electron bombardment ionization, resolution 1000, 1 μ g methyl stearate produce 5 × 10-8c charge, resolution 10000, other conditions remain unchanged, 1 μ g methyl stearate produce 5 × 10-8c charge; full scan (M / z50-500) 200pg methyl stearate, extraction molecular ion (M / z298) SNR > 400:1. 1 μ g methyl stearate (PCIM / z299.3) and 1 μ g anthraquinone (NCIM / z208.1) were determined by chemical ionization with a resolution of 1000, and 5 × 10-8c charge was generated. 10fg2,3,7,8-tcdd SNR > 10 (321.8936). Scanning speed: 0.15s/decade GC-MS accurate mass: 2mu RMS computer operating system: Windows NT ionization method: EI (n electron bombardment); PCI (n positive chemical source); NCI (n negative chemical source); API (n atmospheric chemical ionization for LC-MS). Time of flight mass spectrometry was used as tandem mass spectrometry to provide MS-MS. Vacuum system: diffusion pump, molecular turbopump optional. Chromatography: gas chromatography (HP 6890 or other models) or liquid chromatographySpectrum (8) GCT (micromass, UK) mass spectrometer: time of flight mass spectrometry resolution: 5000 (FWHM) GC-MS accurate mass number: ± 20mu sensitivity: electron bombardment, injection of 1Pg hexachlorobenzene, extraction mass number m / z283.8102, using ± 20mu mass window, the signal-to-noise ratio was 29:1. HPLC: HP6890 (9) gcmate / jms-700 mstation (jeol, Japan) mass range: 3000 / 2400（ The resolution: 5000 (10% Valley) > 60000 (10% Valley) (M / z84 dichloromethane and deuterated dichloromethane) sensitivity: electron bombardment ionization, 30pg signal-to-noise ratio of methyl stearate > 10 / 20pg signal-to-noise ratio of methyl stearate > 400. (jms-700: 100fg2, 3, 7, 8-TCDD signal-to-noise ratio > 100, resolution 10000) jms-700 electron bombardment ionization, resolution 1000, 1 μ g methyl stearate produces 4 × 10-7c charge, chemical ionization, 1 μ g methyl stearate (PICM / z299.3) produces > 3 × 10-7c charge scanning speed: 0.1s (M / z50-500) computer operating system: Microsoft Windows / Unix ionization methods: EI and C1. Fab and dip / EI, CI and Fab, ESI and APCI for LC-MS Vacuum System: diffusion pump, molecular turbopump chromatography: gas chromatography (HP6890 or other models) or liquid chromatography (10) JMS RSVP (jeol, Japan) mass range: 2300 mass spectrometer: double focusing magnetic mass spectrometry resolution: 2500 (10% valley bottom) computer operating system: Unix ionization method: EI and Ci, alternative Fab and dip chromatography: gas chromatography (hp5890 or other models) (11) Pegasus II (LECO laboratory equipment) Company, USA) mass range: 10-1000u mass spectrometer: time of flight mass spectrometry scanning speed: 500 full scans (M / z10-1000) / s chromatography: HP 6890 gas chromatograph (12) qp-5000 / QP-5050A (Shimadzu Shimadzu, Japan) mass range: 10-700 / 10-900u mass spectrometer: quadrupole mass spectrometer resolution: 2m (50% valley bottom) sensitivity: 100PG methyl stearate, electron bombardment source, full scan (m / z60-310) extraction, M / z298, SNR > 30 / SNR > 60 scanning speed: 6000u / s stable mass Qualitative: 0.1u/24h Vacuum System: molecular vortex(13) turbomass computer operating system: Microsoft Windows chromatography: gas chromatography Shimadzu GC-17A (13) turbomass GC-MS (PE company, USA) mass range: 2-1200u mass spectrometer: quadrupole mass spectrometry sensitivity: electron bombardment source, selected ion detection method, 10fg octafluoronaphthalene production signal-to-noise ratio > 5 mass stability: 0.1u/48h dynamic linear range: 105 Vacuum System: molecular turbopump (14) Saturn 2000 (Varian, USA) mass range: 10-650 (Saturn 2000) sensitivity: electron bombardment source, extraction ion (M / z284 or M / z286) after full scan, when the half peak width is 4S, the signal-to-noise ratio of 2PG hexachlorobenzene is > 10. Chemical ionization, full scan ion extraction (M / z183), at half peak width of 4S, 10pg phenol signal-to-noise ratio > 10. When the half peak width of MS-MS (182-152) was 4 S, the SNR of 10 PG phenol was more than 25. Mass spectrometer: ion trap mass spectrometry - provides full scan, selective ion detection, multiple mass spectrometry Vacuum System: molecular turbopump chromatography: CP 3800 gas chromatograph [collect this page] [large medium small] [view all] [return to top] [print this page]】[close window] https://public.sitejot.com/pointcoal6.html https://flipboard.com/@unclehoney8 https://www.folkd.com/submit/spark.adobe.com/page/30OPTeKXsSIhq// https://cutt.ly/4neB1iv https://public.sitejot.com/storedill7.html IP:240b:11:e6e1:a200:f852:381a:8340:8d17 TIME:"2021-06-12 (土) 19:40:30" REFERER:"https://yakuza.wiki/?cmd=edit&page=Some+majorhvkyqo" USER_AGENT:"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.101 Safari/537.36"
