Mass spectrometer schematic

Figure 8. Triple-stage quadrupole mass spectrometer schematic.

Figure 6.12 Standalone Orbitrap (Exactive) mass spectrometer. (Schematic diagram provided courtesy of Thermo Fisher Scientific.)...

Figure 7.6. Matrix-assisted iaser-desorption ionization mass spectrometer (schematic).

Figure 9,44 Mass spectrometer. Schematic diagram of CEG model 21-103. The magnetic field that brings ions of varying mass-to-charge ratios (m/z) into register is perpendicular to the page. (Reprinted with permission of John Wiley Sons, Inc. from Holum, J. R., Organic Chemistry A Brief Course, Copyright 1975.)...

Figure A3.5.8. Schematic diagram of the cell used in a Fourier transfomr mass spectrometer.

In essence, a guided-ion beam is a double mass spectrometer. Figure A3.5.9 shows a schematic diagram of a griided-ion beam apparatus [104]. Ions are created and extracted from an ion source. Many types of source have been used and the choice depends upon the application. Combining a flow tube such as that described in this chapter has proven to be versatile and it ensures the ions are thennalized [105]. After extraction, the ions are mass selected. Many types of mass spectrometer can be used a Wien ExB filter is shown. The ions are then injected into an octopole ion trap. The octopole consists of eight parallel rods arranged on a circle. An RF... 

A schematic diagram of a reverse geometry mass spectrometer is shown in figure Bl.7.4. 

Figure Bl.7.4. Schematic diagram of a reverse geometry (BE) magnetic sector mass spectrometer ion source (1) focusing lens (2) magnetic sector (3) field-free region (4) beam resolving slits (5) electrostatic sector (6) electron multiplier detector (7). Second field-free region components collision cells (8) and beam deflection electrodes (9).

Another instrument used in physical chemistry research that employs quadnipole mass filters is the guided ion beam mass spectrometer [31]. A schematic diagram of an example of this type of instrument is shown in figure B 1.7.13. A... 

Figure Bl.7.13. A schematic diagram of an ion-guide mass spectrometer. (Ervin K M and Annentrout P B 1985 Translational energy dependence of Ar + XY —> ArX + Y from thennal to 30 eV c.m. J. Chem. Phys. 83 166-89. Copyright American Institute of Physics Publishing. Reproduced with pemiission.)...

Figure Bl.7.14. Schematic cross-sectional diagram of a quadnipole ion trap mass spectrometer. The distance between the two endcap electrodes is 2zq, while the radius of the ring electrode is (reproduced with pennission of Professor R March, Trent University, Peterborough, ON, Canada).

Figure Bl.7.17. (a) Schematic diagram of a single acceleration zone time-of-flight mass spectrometer, (b) Schematic diagram showing the time focusing of ions with different initial velocities (and hence initial kinetic energies) onto the detector by the use of a reflecting ion mirror, (c) Wiley-McLaren type two stage acceleration zone time-of-flight mass spectrometer.

Figure Bl.7.18. (a) Schematic diagram of the trapping cell in an ion cyclotron resonance mass spectrometer excitation plates (E) detector plates (D) trapping plates (T). (b) The magnetron motion due to tire crossing of the magnetic and electric trapping fields is superimposed on the circular cyclotron motion aj taken up by the ions in the magnetic field. Excitation of the cyclotron frequency results in an image current being detected by the detector electrodes which can be Fourier transfonned into a secular frequency related to the m/z ratio of the trapped ion(s).

Schematic diagram of a mass spectrometer. After insertion of a sampie (A), it is ionized, the ions are separated according to m/z value, and the numbers of ions (abundances) at each m/z value are plotted against m/z to give the mass spectrum of A. By studying the mass spectrum, A can be identified,...

Fig. 1. Schematic diagram of a double-focusing Nier-Johnson magnetic sector mass spectrometer where ( " ) represents paths of ions having slightly...

Fig. 6. Schematic diagram of a four-sector mass spectrometer of EBEB geometry where ESA = electrostatic analyzer (30). The flexiceU is the coUision...

Figure 1 Schematic diagram of a Mattauch-Herzog geometry spark source mass spectrometer using an ion-sensitive plate detector.

Figure 1 Schematic of DC glow-discharge atomization and ionization processes. The sample is the cathode for a DC discharge in 1 Torr Ar. Ions accelerated across the cathode dark space onto the sample sputter surface atoms into the plasma (a). Atoms are ionized in collisions with metastable plasma atoms and with energetic plasma electrons. Atoms sputtered from the sample (cathode) diffuse through the plasma (b). Atoms ionized in the region of the cell exit aperture and passing through are taken into the mass spectrometer for analysis. The largest fraction condenses on the discharge cell (anode) wall.

Fig. 4.46. Schematic diagram of IBSCA measurement equipment this usually combined with a mass spectrometer (SIMS or SNMS).

Figure 9.12 Schematic diagram of the silica sheath electrospray needle used to interface capillary zone electi ophoresis with a mass spectrometer.

Figure 10.4 shows a schematic representation of the multidimensional GC-IRMS System developed by Nitz et al. (27). The performance of this system is demonstrated with an application from the field of flavour analysis. A Siemens SiChromat 2-8 double-oven gas chromatograph equipped with two FIDs, a live-T switching device and two capillary columns was coupled on-line with a triple-collector (masses 44,45 and 46) isotope ratio mass spectrometer via a high efficiency combustion furnace. The column eluate could be directed either to FID3 or to the MS by means of a modified Deans switching system . 

FIGURE 1 A schematic drawing of a large magnet mass spectrometer. 

Figure 3.6 Schematics of three configurations of mass spectrometer capable of accurate mass measurement (a) forward-geometry (b) reverse-geometry (c) tri-sector. From applications literature published by Micromass UK Ltd, Manchester, UK, and reproduced with permission.

Figure 3.8 Schematic of a triple quadrupole mass spectrometer.

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