Empower ToF technology with soft ionization of airborne molecules
Newly designed SUPER SESI for Sciex MS*
SUPER SESI - ScieX
Sciex mass spectrometers incorporate a curtain plate that produces a counterflow gas, which prevents humidity from entering in the Q-jet region.
The counterflow gas can severely affect the performance of the SESI ionization. It can cause strong temperature gradients, which can have a negative impact on the stability of the eletcrospray, and memory effects of low volatility species.
In order to accommodate the counterflow, SUPER SESI for SCIEX incorporates an extra heater floating at high voltage.
This provides a uniform temperature
The uniform temperature eases modelling and numerical optimization
The internal geometry is optimized to maintain a laminar configuration despite the counterflow
The resulting configuration applies all principles and advantages of the SUPER SESI configuration*:
SUPER SESI for Sciex incorporates a redesigned curtain plate with a heat exchanger that floats at high voltage.
This provides a high uniform temperature:
Improved electrospray stability
Better control of ionization conditions
Improved background levels
Improved memory effects
Reduced background levels
Uniform and high temperature to eliminate cool spots and deposition of low volatility species
Reduced exposed area
Transfer line and ionizer made of silica coated SS-316, and teflon encapsulated seals
New counterflow gas heater design impedes the entrance of sample gas even if unexpected high flows are introduced
All parts are easily accessible for cleaning
Reversed flow to reduce internal background contamination
Improved ionization efficiency
The internal geometry is optimized to maintain a stable laminar configuration with the electrode-less configuration:
Minimum dilution of neutral species
Maximum the flow of ions passed to the MS
Low exposed area