Erratum: Measurement of zinc stable isotope ratios in biogeochemical matrices by double-spike MC-ICPMS and determination of the isotope ratio pool available for plants from soil. - Arnold,T; Schönbächler,M; Rehkämper,M; Dong,S; Zhao,FJ; Kirk,GJ; Coles,BJ; Weiss,DJ (Anal Bioanal Chem, 2011)