TY - RPRT TI - Versatile combustion-amalgamation technique for the photometric determination of mercury in fish and environmental samples AU - Wayne A. Willford AU - Robert J. Hesselberg AU - Harold L. Bergman PY - 2020 DO - 10.1093/jaoac/56.4.1008 UR - https://pubs.usgs.gov/publication/70006566 ID - 70006566 ER -