TY  - RPRT
TI  - Atomic-absorption spectrometric determination of cobalt, nickel, and copper in geological materials with matrix masking and chelation-extraction
AU  - R. F. Sanzolone
AU  - T. T. Chao
AU  - G. L. Crenshaw
PY  - 1979
DO  - 10.1016/s0003-2670(01)83755-7
UR  - https://pubs.usgs.gov/publication/70012496
ID  - 70012496
ER  -