DELTA V System Performance
Standard performance data of the DELTA V Plus and the DELTA V Advantage:
The DELTA V isotope ratio mass spectrometers are characterized by highest sensitivity with excellent linearity and stability. The sensitivity of the DELTA V is guaranteed for both Dual Inlet mode and Continuous Flow mode.
| |
DELTA V Plus |
DELTA V Advantage |
Sensitivity
Dual Inlet mode
Molecules CO2 / mass 44 ion |
800 M/I |
1200 M/I |
| translates to sample consumption for 5 nA signal at mass 44 |
0.04 nmol/s |
0 .06 nmol/s |
Sensitivity
Continuous Flow mode
Molecules CO2 / mass 44 ion |
1100 M/I |
1500 M/I |
| .. with Isotope Ratio Linearity* |
0.02 ‰ / nA |
| Mass Range at 3 kV |
1 – 96 Da |
1 – 80 Da |
| Mass Resolution m/Δm (10 % valley) |
110 |
| Effective Magnetic Deflection Radius |
191 mm |
| System Stability |
< 10 ppm |
| H3+ Factor |
< 10 ppm / nA |
| H3+ Factor Stability |
< 0.03 ppm / nA / hs |
| Noise Level |
< 50 dB(A) |
| *Known as Ion Source Linearity |
Breakthrough New Analyzer Concept for Outstanding System Performance.
Dual Inlet Performance
Standard performance data of the Delta V by viscous flow gas introduction using the Dual Inlet system and changeover valve:
| GAS |
MINOR
ISOTOPE |
INTERNAL PRECISION
(2σmean) |
SAMPLE SIZE
bar µL |
| CO2 |
13C |
0.006 ‰ |
> 100 |
| |
|
0.02 ‰ |
> 50 |
| |
18O |
0.012 ‰ |
> 100 |
| |
|
0.04 ‰ |
> 50 |
| N2 |
15N |
0.01 ‰ |
> 100 |
| |
|
0.05 ‰ |
> 50 |
| SO2 |
34S |
0.01 ‰ |
> 100 |
| H2 |
2H |
0.09 ‰ |
> 200 |
Continuous Flow Performance
Standard performance data of the DELTA V by continuous flow gas introduction. 10 pulses of reference gas at an amplitude of 5 nA (1.5 V, for H2 5 V):
| GAS |
MINOR
ISOTOPE |
PRECISION
(1σ) |
LINEARITY |
| CO2 |
13C |
0.06 ‰ |
0.02 ‰ / nA |
| |
18O |
0.08 ‰ |
0.02 ‰ / nA |
| N2 |
15N |
0.06 ‰ |
0.02 ‰ / nA |
| O2 |
18O |
0.08 ‰ |
0.03 ‰ / nA |
| |
17O |
0.20 ‰ |
0.04 ‰ / nA |
| CO |
18O |
0.15 ‰ |
0.04 ‰ / nA |
| H2 |
2H |
0.40 ‰ |
0.20 ‰ / nA |
| SO2 |
34S |
0.10 ‰ |
0.03 ‰ / nA |
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