![SCIEX 3200 QTRAP Скачать руководство пользователя страница 45](http://html1.mh-extra.com/html/sciex/3200-qtrap/3200-qtrap_system-users-manual_1217527045.webp)
Adjust the ion source temperature in increments of 50 °C to 100 °C to achieve the best signal or
signal-to-noise ratio.
APCI 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:
The minimum flow rate supported by the APCI probe is 200 µL/min. For a complete list of
APCI probe parameters, refer to the section:
Tip!
It is easier to optimize signal and signal-to-noise with flow injection analysis than with
on-column injections.
Note:
When using the APCI probe, make sure that the corona discharge needle is pointing
toward the aperture.
Optimization Tips
Optimization of the ion source minimizes the need for cleaning of the ion source and vacuum
interface components.
Ion Source Optimization
System User Guide
RUO-IDV-05-6475-C
SCIEX 3200 Systems
45/114