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This section describes how to optimize the performance of the NanoSpray
®
III head for a specific compound.
WARNING! Laser Hazard. Follow this procedure exactly to avoid exposure to
hazardous laser radiation.
WARNING! Hot Surface Hazard. Do not touch the high voltage rail or emitter
tip.
WARNING! Electrical Shock Hazard. Never operate the NanoSpray
®
ion source
without the illuminator, camera, stop, and covers properly installed. Never
touch the curtain plate or allow the emitter tip to contact the curtain plate.
If the mass spectrometer is operational and the ion source is installed, then
high voltage is present on the curtain plate, even if the X-Y-Z positioning
unit is moved away from the interface.
This procedure assumes that the XYZ coordinates are set to the optimized values recorded during testing. If the
XYZ values have been changed (for example, during replacement of the emitter tip), set them to the optimized
values, being careful not to strike the emitter tip against the curtain plate.
This section describes how to optimize the performance of the NanoSpray
®
III head for a specific compound.
Note:
For installation tests for the OptiFlow
TM
and NanoSpray
®
ion source, refer to the
Ion Source Tests,
Specifications and Data Log
.
1. Start the Analyst
®
/Analyst
®
TF software.
2. In
Tune and Calibrate
mode, double-click
Manual Tune
and then open the method optimized in the ion
source tests.
3. Set the
Interface Heater Temperature (IHT)
to
75 °C
.
Note:
For the NanoSpray
®
ion source application, the IHT optimizes between 50 °C and 100 °C. While higher
temperatures produce slightly better spray, they decrease the lifetime of the emitter tip.
4. Wait until the interface reaches the correct temperature. This can take up to 10 minutes.
5. Infuse or inject the compound.
Operator Guide
NanoSpray
®
Ion Source
RUO-IDV-05-0811-F
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Optimize the NanoSpray III Head