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5973 MSD
HP 5973 MSD Hardware Manual
HP 5973 MSD Hardware Manual
Table of content
Contents
Table Of Contents
Table Of Contents
Table Of Contents
Specifications
Reagent gases and regulators
Hardware Reference
CI ion source
Reagent gas flow control module
EI/CI GC/MSD interface (CI interface)
Chemical Ionization Theory
Chemical ionization overview
Positive CI theory
Negative CI theory
CI setup
To remove the CI MSD covers
To pump down the MSD
To install the GC column in the EI/CI GC/MSD interface
To switch from CI to EI operating mode
To switch from EI to CI operating mode
To install the CI ion source
To install the CI interface tip seal
CI operation
To set up the software for CI operation
To set up methane reagent gas flow
To perform CI autotune
To perform a positive CI autotune (methane only)
To perform a negative CI autotune (any reagent gas)
To verify positive CI performance
To verify negative CI performance
To operate the reagent gas flow control module
To monitor high vacuum pressure
To use other reagent gases
Troubleshooting tips and tricks
Air leaks
Pressure-related symptoms (overview)
Poor vacuum without reagent gas flow
High pressure with reagent gas flow
Pressure does not change when reagent flow is changed
Signal-related symptoms (overview)
No peaks
No or low reagent gas signal
No or low PFDTD signal, but reagent ions are normal
Excessive noise or low signal-to-noise ratio
Tuning-related symptoms (overview)
Reagent gas ion ratio is difficult to adjust or unstable
High electron multiplier voltage
Can not complete autotune
Peak widths are unstable
To clean the CI ion source
To minimize foreline pump damage from ammonia
To replace the methane/isobutane gas purifier
To refill the CI calibrant vial
To purge the CI calibration valve
To connect the vacuum gauge controller
To clean the reagent gas supply lines (tubing)
GC/MSD interface parts
CI ion source parts
Flow control module parts
Ferrules
Miscellaneous parts
H
Hardware Manual
HP 5973 MSD
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This manual is suitable for:
5973 MSD
