. Author manuscript; available in PMC: 2018 May 9.

Published in final edited form as: Environ Sci Technol. 2011 Mar 15;45(7):2648–2654. doi: 10.1021/es1022015

Table 1.

Aqueous and post-incubated sediments properties and As, Fe, Mn Concentrations after 23 days

Liquid phase (solid eqv.)	AGW	Control			SHEWANELLA sp. ANA-3

		C₀	C_lac	C_lac+kan	S_kan	S_lac+kan
As_μg l⁻¹(mg kg⁻¹)	nd^*	nd^*	nd^*	nd^*	2.6 ± 0.01 (0.005)	17.3 ± 3.7 (0.035)
As(III)_μg l⁻¹(mg kg⁻¹)	nd^*	nd^*	nd^*	nd^*	nd^*	16.1 ± 1.9 (0.032)
Fe_mg l⁻¹(mg kg⁻¹)	nd^*	nd^*	7.6 ± 0.6 (17)	4.4 ± 0.4 (10)	0.4 ± 0.04 (1)	7.3 ± 1.1 (16)
Fe (II)_mg l⁻¹(mg kg⁻¹)	nd^*	nd^*	7.6 ± 0.7 (17)	4.3 ± 0.4 (9)	0.4 ± 0.06 (1)	7.2 ± 1.1 (16)
Mn_mg l⁻¹(mg kg⁻¹)	nd^*	nd^*	7.4 ± 0.9 (17)	8.1 ± 0.8 (18)	0.8 ± 0.08 (2)	7.9 ± 0.2 (18)
pH	7.88	8.13 ± 0.02	7.41 ± 0.02	7.11 ± 0.02	7.89 ± 0.02	7.13 ± 0.01

Solid phase	Pre-incubated
Color	Orange	Orange	Orange	Orange	Orange	Grey
[As_solid]/[As_liquid] (L/kg)		>320^#	>320^#	>320^#	218	33
P-extractable As (mg kg⁻¹)	0.14 ± 0.03	0.15 ± 0.01	0.17 ± 0.05	0.15 ± 0.03	0.58 ± 0.04	0.56 ± 0.01
P-extractable AsIII (mg kg⁻¹)	nd^*	nd^*	nd^*	nd^*	nd^*	nd^*
24 hrs HCl leachable Fe (g kg⁻¹)	10.6 ± 1.2	12 ± 0.6	12 ± 0.8	11 ± 0.7	11 ± 1.6	12 ± 0.3
1 hr HCl leachable Fe (g kg⁻¹)	0.79 ± 0.15	3.43 ± 0.69	5.63 ± 0.63	5.11 ± 0.83	2.94 ± 0.12	5.4 ± 0.04
1 hr HCl leachable FeII (g kg⁻¹)	0.04 ± 0.002	0.2 ± 0.02	0.41 ± 0.01	0.33 ± 0.02	0.2 ± 0.03	3.2 ± 0.02
HCl leachable FeII/Fe ratio	0.051	0.061	0.073	0.065	0.068	0.593
HCl leachable Mn (g kg⁻¹)	0.2 ± 0.05	0.2 ± 0.09	0.3 ± 0.03	0.2 ± 0.04	0.2 ± 0.04	0.2 ± 0.02

: not detectable;

liquid phase As was not detectable.

Limit of detection (LOD) for As and Fe/Mn by HR ICPMS are 0.10 μgl-1 (0.0002 mgkg-1) and 1 μgl-1 (0.002 mgkg-1) respectively. AsIII by DPCSV is 2 μgl-1 (0.004 mgkg-1) and Fe is 0.03 mgl⁻¹ (0.06 mgkg⁻¹) by Ferrozine method.