Consumables
Gas Supply iCAP TQ/TQs ICP-MS
5-18
iCAP Qnova Series ICP-MS Pre-Installation Requirements Guide (P/N BRE0006946, Revision A)
Thermo Scientific
Plasma and Cooling Gas
The argon supply to the iCAP Qnova Series instruments must be
stabilized. The gas pressure regulator must be qualified for the purity
specification of the plasma gas, see
.
Using a high quality two-stage regulator is recommended, see
for suppliers of pressure regulators.
Connection of the laboratory argon supply to the instrument is made
via a push-in fitting. A recommended set-up for the argon supply is
shown in
. 3 m polyurethane tubing will be supplied with
the instrument.
Table 5-16.
Argon gas requirements
Gas Requirement
Specification
Purity
99.996% or better
Maximum Water Content
5 ppmv
Supply Rate
max. 24 L/min
Pressure
min. 0.55 MPa (5.5 bar)
max. 0.6 MPa (6 bar)
using a two-stage pressure
regulator (200 bar to 10 bar,
230 bar to 10 bar or 300 bar to
10 bar)
NOTICE
The plasma gas regulator must have an outlet pressure of max. 1 MPa
(10 bar), and it must fit the maximum primary pressure specification
of the argon gas laboratory supply. Check whether your maximum
primary pressure is 30 MPa (300 bar), 23 MPa (230 bar), or 20 MPa
(200 bar), and choose accordingly
NOTICE
The polyurethane tubing supplied with your iCAP TQ/TQs ICP-MS
should not be used between the gas source and the pressure regulator
because polyurethane is not specified for pressure above approximately
0.8 MPa (8 bar).
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