Mass Spectrometer Systems
Gas Chromatograph-Mass Spectrometers (GC/MS)
Specifications
[1] Ion source
| Ionization modes |
EI (standard); CI, NCI (options) |
| Ionization voltage |
10 eV to 200 eV |
| Emission current |
5 µA to 250µA |
| Filament |
Dual rhenium coil type |
| Ion source temperature |
100 °C to 300 °C |
[2] Mass Spectrometer
| Mass range |
m/z 1.5 to m/z 1090 |
| Mass filter |
High accuracy quadrupole with pre-rods |
| SIM mode |
64 channels x 128 groups or FASST |
| Resolution |
R>2M (FWHM) |
| Stability |
±0.1 u/48 hours (constant temperature) |
| MS interface |
100 °C to 350 °C |
[4] Detector
| Detector unit |
Secondary electron multiplier tube
(-10kV conversion dynode, with overdrive lens) |
| Detector |
ACTIVE FILM Multiplier® |
| Dynamic range |
8 x 106 (electrical) |
[5] Vacuum System
| Main pump |
Dual inlet differential vacuum system
(179 L/sec + 185 L/sec, He) |
| Backup pump |
30 L/min (60Hz) oil rotation pump |
| Vacuum gauges |
Pirani gauge, ion gauge |
| Column flow |
He, 15 mL/min maximum |
[6] Scan speed
| Maximum scan speed |
10,000 u/sec
From m/z 50 to m/z 900, measurement at 0.1 sec intervals in 0.1 u steps Minimum interval 20 ms (maximum 50 scans per second possible) |
[7] DI Specifications (Option)
| Temperature measurement range |
Ambient to 500 °C |
| Heating rate |
5, 10, 20, 40, 80 °C/min. (at maximum output) |
| Program |
Temperature program up to 5 steps |
| Sample vial size |
1.9 mm I.D. x 8 mm depth |
[8] Installation conditions (See installation Requirements Manual for details)
| Power requirements |
Frequency |
50 / 60 Hz |
| GC |
AC single phase 110V,115V 1800 VA
AC single phase 230V 2600 VA(high power oven) |
| MS |
AC single phase 110V to 240V 1000VA |
| Voltage regulation |
operational power voltage range
±10%
specified power voltage range
±5% |
| Set-up environment |
Temperature |
constant temperature between 18 to 28 °C |
| Humidity |
40 to 70% RH (no condensation) |
Specifications described above are subject to change without notice.
Example Installation
(PC and printer dimensions will differ according to model.)
The following gives cable and piping lengths:
MS rotary-pump
vacuum piping: |
approx. 1.5 m |
| Power cable : |
approx. 1.5 m |
| PC-MS cable: |
approx. 2 m |
Rotary-pump
evacuation piping: |
approx. 4 m |
|