5. Glossary
Aliquot of a gas
A known quantity of gas introduced into a chamber.
White; blank
The amount of noble gas (in moles) released from the chamber following an extraction and purification procedure identical to that used for a sample. This amount must be negligible relative to the concentrations measured in the samples.
Background noise; bassline
An electrical signal generated by a collector when no beam is present.
Static vacuum chamber; static vacuum
A tank in which the vacuum is no longer maintained by a pump system.
Extraction (%); extraction (%)
Ratio of voltages, expressed as a percentage, between the average of the voltages U 1 ...
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