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Site Preparation
Gas considerations
12
Gas purity
Some gas suppliers furnish
instrument
or
chromatographic
purity
grades (the names vary with the supplier) specifically intended for
chromatographic use. Use these when available.
Carrier Gases and Capillary Makeup Gases
99.9995%
”
”
Best available
Helium
Nitrogen
Hydrogen
Argon/Methane
Note: For ECD use, gases must be 99.9995% pure.
Detector Support Gases
Hydrogen
Air (dry)
99.9995%
Best available
Gas Purity Recommendations
Summary of Contents for HP 5890 II Plus Series
Page 1: ...Chemical Analysis Group 5890 Gas Chromatograph 5890 Series II Site Prep Info Document A15282 ...
Page 2: ...Site Prep Installation Manual HP 5890 Series II and HP 5890 Series II Plus ...
Page 6: ...1 Site Preparation ...
Page 19: ...This page intentionally left blank ...
Page 20: ...2 Installation ...