TY  - RPRT
TI  - Manganese dioxide causes spurious gold values in flame atomic-absorption readings from HBr-Br2 digestions
AU  - W. L. Campbell
PY  - 1981
DO  - 10.1016/0375-6742(81)90090-x
UR  - https://pubs.usgs.gov/publication/70011732
ID  - 70011732
ER  -