[1] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA
[2] Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA
[3] Univ Stockholm, Albanova Univ Ctr, FYSIKUM, S-10691 Stockholm, Sweden
[4] McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M1, Canada
[5] Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA
[6] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
[7] Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA
[8] Royal Vet & Agr Univ, Dept Nat Sci, DK-1871 Frederiksberg, Denmark
[9] FEI Co, Hillsboro, OR 97124 USA
[10] Natl Water Res Inst Branch, Saskatoon, SK S7N 3H5, Canada
[11] Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA
[12] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA
[13] Pacific NW Natl Lab, Div Chem Sci, Richland, WA 99352 USA
[14] Natl Water Res Inst Branch, Burlington, ON L7R 4A6, Canada