TY  - RPRT
TI  - An analytical method for hydrogeochemical surveys: Inductively coupled plasma-atomic emission spectrometry after using enrichment coprecipitation with cobalt and ammonium pyrrolidine dithiocarbamate
AU  - D.M. Hopkins
PY  - 1991
DO  - 10.1016/0375-6742(91)90008-i
UR  - https://pubs.usgs.gov/publication/70016376
ID  - 70016376
ER  -