The GAs Extraction and Analyses system (GAEA) for immediate extraction and measurements of volatiles in the Hayabusa2 sample container

Earth, Planets and Space

Table 4 Specifications and measured ranges of m/z for the QMS (Watmass) of the GAEA

Mode	SORB-AC ^a	Scan time ^b	m/z
Recipe 1. Peak scan	close	~ 120 s (~ 6 scan)	Peak scan from 1 to 100
Recipe 2. Peak jump	close	~ 90 s	Peak jump at 2, 3, 4, 14, 15, 16, 17, 18, 28, 29, 32, 34, 40, 44, 45, 46, 64, 66, 69, 78
Recipe 3. Peak scan	open	~ 90 s (~ 10 scan)	Peak scan from 1 to 44
Recipe 4. Peak jump	open	~ 90 s	Peak jump at 1, 2, 3, 4, 6, 12, 16, 18, 20, 21, 22, 24, 28, 29, 30, 32, 33, 34, 36, 38, 40, 44, 45, 46, 69, 78, 84, 132
Recipe 5. Peak scan		Optional	Peak scan from 1 to 200

A procedure plan used for the measurements of gases in the Hayabusa2 sample container
Measurements are performed sequentially from Recipe 1 to Recipe 4 in each gas fraction
Recipe 5 is also applied in the case where the gas amount is high
^aGases are measured without SORB-AC and then with SORB-AC by opening the valve
^bBasic scan time depends on the gas amount and composition