🔬 EI 70 eV Ionization (Source Filament Emission 150-300 uA, Electron Multiplier EMV)

GC-MS Electron Ionization (EI) Source Calculator

Optimize 70 eV classical Electron Ionization (EI) ion source filament emission currents (150 to 300 uA) and Electron Multiplier Voltage (EMV in Volts) for single-quadrupole and triple-quadrupole GC-MS/MS instruments: calculate source chamber temperature (250 deg C to 300 deg C) to prevent poly-aromatic condensation fouling, and service profits.

1. Project & Operating Inputs

Mass Spec Instruments Maintained (Unit Count e.g. 5 Triple-Quad GC-MS/MS)

Filament Emission Current (uA e.g. 200.0 uA Standard EI Emission)

Customer Annual Precision Instrument PM Contract ($ / Yr)

Dual Rhenium/Tungsten Filaments, Ceramic Lens Rebuild, Turbopump Oil ($)

2. Financial Breakdown & Yield

70 EV EI ION SOURCES

Turnkey Mass Spec Maintenance Service Profit

Analytical Instrumentation Service Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost