TY - RPRT TI - Simultaneous Speciation of Arsenic, Selenium, and Chromium by HPLC-ICP-MS AU - Ruth E. Wolf AU - Suzette A. Morman AU - Jean M. Morrison AU - Paul J. Lamothe PY - 2008 DO - 10.3133/ofr20081334 UR - https://pubs.usgs.gov/publication/ofr20081334 ID - ofr20081334 ER -