Agilent Technologies ALS Handbuch Seite 40

7890 Series GC Site Preparation
7010 and 7000 Series MS
Table 19
Table 19
Feature
High vacuum pump
Optimal gas flow mL/min
Maximum recommended gas flow, mL/min
Maximum gas flow, mL/min
Maximum column id
1 Total gas flow into the MS = column flow + reagent gas flow (if applicable) + Agilent CFT/IFT device
2 Expect degradation of spectral performance and sensitivity.
Table 20
source pressures.
Table 20
Carrier and reagent gas requirements
Helium (required)
(column and split flow)
Hydrogen (optional)
(column and split flow)
Methane reagent gas
(required for CI operation)
Ammonia reagent gas (optional)
40
lists the limits on total gas flow into the Triple Quad MS.
7010 and 7000 Triple Quad MS total gas flow limitations
1
2
flow (if applicable). Instruments using a JetClean ion source system may also add a small
(~0.075 mL/min) hydrogen flow.
lists typical flows resulting from selected carrier and reagent gas
7010 and 7000 Triple Quad MS carrier and reagent gases
1
Split-flow turbo
1.0 to 2.0
4.0
6.5
0.53 mm (30 m long)
Typical pressure range
345 to 552 kPa
(50 to 80 psi)
345 to 552 kPa
(50 to 80 psi)
103 to 172 kPa
(15 to 25 psi)
34 to 55 kPa
(5 to 8 psi)
GC, GC/MS, and ALS Site Preparation Guide
Typical flow
(mL/min)
20 to 50
20 to 50
1 to 2
1 to 2