TY  - RPRT
TI  - Determination of sub-microgram amounts of selenium in geological materials by atomic-absorption spectrophotometry with electrothermal atomisation after solvent extraction
AU  - R. F. Sanzolone
AU  - T. T. Chao
PY  - 1981
DO  - 10.1039/an9810600647
UR  - https://pubs.usgs.gov/publication/70012147
ID  - 70012147
ER  -