From: Quantitative determination of elemental sulfur at the arsenopyrite surface after oxidation by ferric iron: mechanistic implications
Sample number
Total aqueous As/μmoles
Elemental sulfur/μmoles
Elemental sulfur: % aqueous As
S1
30 ± 2
22 ± 1
74 ± 5
S2
54 ± 3
43 ± 2
81 ± 6
S3
97 ± 5
70 ± 3
72 ± 5