TY - RPRT TI - The U.S. Geological Survey instrument for simultaneous multi-element atomic absorption spectrometry; description of the hardware and of the system control and data aquisition software AU - J. S. Kane PY - 1987 DO - 10.3133/ofr87604 UR - https://pubs.usgs.gov/publication/ofr87604 ID - ofr87604 ER -