#author("2021-06-12T19:39:03+09:00","","")
[[TopPage]]

   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
トップ   新規 一覧 検索 最終更新   ヘルプ   最終更新のRSS