flow injection analysis (FIA) or tee infusion, through a syringe pump, or through a separation
column using a loop injector or autosampler. If it is introduced by a syringe pump, then the
sample is injected directly in the ion source. Infusion optimization can only be used for ion path
optimization and MS/MS fragment selection.
Flow Rate
Sample flow rates are determined by the LC system or syringe pump. The TurboIonSpray probe
supports flow rates from 5 µL/min to 3,000 µL/min. The APCI probe supports flow rates from
200 µL/min to 3,000 µL/min.
TurboIonSpray Probe Optimization
WARNING! Ionizing Radiation Hazard, Biohazard, or Toxic Chemical
Hazard. Make sure that the source exhaust system is connected and
functioning, and that good general laboratory ventilation is provided.
Adequate laboratory ventilation is required to control solvent and sample
emissions, and to provide for the safe operation of the system.
WARNING! Fire Hazard. Do not direct more than 3 mL/min of flammable solvent in
the ion source. Exceeding the maximum flow rate can cause solvent to accumulate
in the ion source. Do not use the ion source if the source exhaust system is not
enabled and functioning when the ion source and the probe are properly installed.
WARNING! Ionizing Radiation Hazard, Biohazard, or Toxic Chemical
Hazard. Make sure that the electrode protrudes beyond the tip of the
probe, to prevent hazardous vapors from escaping from the source.
The electrode must not be recessed within the probe.
CAUTION: Potential System Damage. If the LC system connected to the mass
spectrometer is not controlled by the software, then do not leave the mass spectrometer
unattended while in operation. The liquid stream from the LC system can flood the ion
source when the mass spectrometer goes in Standby state.
Note:
To keep the system clean and at optimum performance, adjust the probe position when
changing the flow rate.
Tip!
It is easier to optimize signal and signal-to-noise with flow injection analysis than with
on-column injections.
Ion Source Optimization
SCIEX 3200 Systems
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System User Guide
RUO-IDV-05-6475-C