Table 2 pH profiles for Bennu OREX-800107-106 and other carbonaceous meteorite references

From: Bio-essential sugars in samples from asteroid Bennu

Sample

Extract pH

Asteroids

Bennu

8.23 ± 0.02

(OREX-800107-106)

SiO2 blank

7.08 ± 0.03

Ryugu_TD1 site (A0106)

3.95 ± 0.01 [*]

Ryugu_TD2 site (C0107)

4.19 ± 0.01 [*]

Meteorites

Murchison (CM) [†]

7.92 ± 0.02

Murray (CM) [‡]

7.89 ± 0.03

Orgueil (CI) [‡]

6.92 ± 0.01

  1. [*]Extraction and analysis were conducted in ref. 26; [†]extraction was conducted in ref. 24; and [‡] extraction was conducted in ref. 49.
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