TY - RPRT TI - Ion exchange separation of chromium from natural water matrix for stable isotope mass spectrometric analysis AU - J.W. Ball AU - R.L. Bassett PY - 2000 DO - 10.1016/s0009-2541(00)00189-3 UR - https://pubs.usgs.gov/publication/70022631 ID - 70022631 ER -