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Applicability of Tedlar™ bags to aqueous sampling for ambient toxicity testing: Adsorption of trace metals
Author(s) -
deBruyn Adrian M. H.,
Rasmussen Joseph B.
Publication year - 1999
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620180910
Subject(s) - adsorption , inert , aqueous solution , chemistry , inert gas , environmental chemistry , metal , trace amounts , trace metal , trace (psycholinguistics) , contamination , inorganic chemistry , organic chemistry , medicine , linguistics , philosophy , alternative medicine , pathology , ecology , biology
Many materials commonly used to collect and store samples for ambient toxicity testing will readily sorb and/or leach contaminants. Previous work indicates that Tedlar™ (polyvinylfluoride) sampling bags are largely inert toward organics; we report here that this material is similarly inert to Co 2+ , Cu 2+ , Zn 2+ , Sb 3+ , Pb 2+ , and Cd 2+ in neutral solution. We found no trace metal adsorption at low pH and only slight adsorption (mean loss = 2.1 ppb) at neutral pH from 100‐ppb solutions held in Tedlar bags for 24 h.