6
Gas and Plumbing Requirements
Gases
24 TSQ Quantum XLS and TSQ Quantum GC Preinstallation Requirements Guide Thermo Scientific
Gases
Your mass spectrometer and GC require argon, helium, and CI reagent gases. These gases
must be delivered with the necessary pressure and purity. Always consider using ultra
high-purity (99.999%) gases when available.
Argon
The argon for the collision gas must be high purity (99.995%) with less than 1.0 ppm each of
water, oxygen, and total hydrocarbons. The required gas pressure is 135 ± 70 kPa
(20 ±10 psi). Avoid particulate filters, which can be a source of contamination.
Helium
For GC carrier gas, use 99.995% helium with less than 1.0 ppm each of water, oxygen, and
total hydrocarbons. One full-size tank has an outlet pressure of 400 to 700 kPa (60 to
100 psi). Oxygen and hydrocarbon traps are supplied in the TSQ Quantum Accessory Kit.
CI Reagent Gas
For chemical ionization reagent gas, use 99.995% purity for best results. The required gas
pressure is 65 to 205 kPa (10 to 30 psi) for methane. The gas pressure of other reagent gases
requires optimization.
Plumbing
The TSQ Quantum Accessory Kit contains most fittings, connections, and tubing to connect
the mass spectrometer and GC to the gas supplies. You are responsible for supplying the gas
regulators and parts that are necessary to connect the tubing to the tanks.
Gas tanks might be equipped with single- or dual-stage, high-purity regulators that contain
stainless steel diaphragms. The regulator output pressures must be consistent with the
pressures listed in Tab le 1 0. Each regulator must be equipped with a 1/8 in. Swagelok
compression fitting (or equivalent) to connect a 1/8 in. metal tube.
CAUTION Installing house lines to deliver gas can introduce contaminants that might
damage your system. Ensure that all gas lines used with your system are clean and free of
all particulates and oils. You are responsible for any damage to the instrument caused by
contaminants introduced from your gas delivery system.
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