En. Leonard et al., MODIFIED DIFFUSION METHOD FOR ANALYSIS OF ACID VOLATILE SULFIDES AND SIMULTANEOUSLY EXTRACTED METALS IN FRESH-WATER SEDIMENT, Environmental toxicology and chemistry, 15(9), 1996, pp. 1479-1481
A modified procedure was developed for determining acid volatile sulfi
des (AVS) and simultaneously extracted metals (SEM) in freshwater sedi
ments. A simple diffusion system employing relatively inexpensive glas
sware was compared to the more commonly utilized purge-and-nap system
for generating AVS and SEM. Results obtained using the two different m
ethods were generally comparable.