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Title: Comparison of methods for collecting interstitial water for trace organic compounds and metals analyses

Abstract

Several common materials and methods used to collect interstitial water (IW) were evaluated to determine their effect on the accuracy and precision of measured concentrations of selected organic compounds and metals. The concentration of pollutants in dosed seawater before and after exposure to stainless steel and Teflon centrifuge tubes, glass fiber and Nuclepore filters, cellulose dialysis membranes and fritted glass tubes were compared. Exposure to most hardware materials did not significantly affect the concentration of four metals (Cd, Cr, Cu, Pb) but there was significant loss (up to 79 percent) of two organic compounds (fluoranthene, p,p'-DDE) to almost all the hardware materials tested. Of five commonly used IW collection methods (centrifuging, centrifugal drainage or basal cup, squeezing, vacuum filtration and dialysis) investigated, the centrifuge method was judged the most accurate and precise for polycyclic aromatic hydrocarbons and PCBs. All IW collection methods tested showed high variability for the metals. As a result, with one exception (Cu), there was no significant difference detected in the accuracy of the methods for metals.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Environmental Protection Agency, Newport, OR (United States). Environmental Research Lab.
OSTI Identifier:
6452158
Report Number(s):
PB-93-199552/XAB; EPA-600/J-93/196
Resource Type:
Technical Report
Resource Relation:
Other Information: Also pub. as Environmental Research Lab.-Narragansett, Newport, OR. Pacific Ecosystems Branch rept. no. CONTRIB-N-087. Pub. in Water Research, v26 n7 p989-995 1992. Prepared in cooperation with AScI Corp., McLean, VA
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; INTERSTITIAL WATER; SAMPLING; SAMPLE HOLDERS; COMPARATIVE EVALUATIONS; ACCURACY; AROMATICS; CELLULOSE; CHEMICAL ANALYSIS; CONDENSED AROMATICS; DIALYSIS; DRAINAGE; EVALUATED DATA; FILTERS; FILTRATION; GLASS; MEMBRANES; METALS; POLLUTANTS; POLYCHLORINATED BIPHENYLS; POLYCYCLIC AROMATIC HYDROCARBONS; SEAWATER; SEDIMENTS; SORPTION; STATISTICAL DATA; TEFLON; TUBES; WATER POLLUTION; CARBOHYDRATES; CHLORINATED AROMATIC HYDROCARBONS; DATA; ELEMENTS; EVALUATION; FLUORINATED ALIPHATIC HYDROCARBONS; GROUND WATER; HALOGENATED ALIPHATIC HYDROCARBONS; HALOGENATED AROMATIC HYDROCARBONS; HYDROCARBONS; HYDROGEN COMPOUNDS; INFORMATION; MATERIALS; NUMERICAL DATA; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; OXYGEN COMPOUNDS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLLUTION; POLY; POLYETHYLENES; POLYSACCHARIDES; POLYTETRAFLUOROETHYLENE; SACCHARIDES; SEPARATION PROCESSES; SYNTHETIC MATERIALS; WATER; 540320* - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-)

Citation Formats

Schults, D W, Ferraro, S P, Smith, L M, Roberts, F A, and Poindexter, C K. Comparison of methods for collecting interstitial water for trace organic compounds and metals analyses. United States: N. p., 1992. Web.
Schults, D W, Ferraro, S P, Smith, L M, Roberts, F A, & Poindexter, C K. Comparison of methods for collecting interstitial water for trace organic compounds and metals analyses. United States.
Schults, D W, Ferraro, S P, Smith, L M, Roberts, F A, and Poindexter, C K. 1992. "Comparison of methods for collecting interstitial water for trace organic compounds and metals analyses". United States.
@article{osti_6452158,
title = {Comparison of methods for collecting interstitial water for trace organic compounds and metals analyses},
author = {Schults, D W and Ferraro, S P and Smith, L M and Roberts, F A and Poindexter, C K},
abstractNote = {Several common materials and methods used to collect interstitial water (IW) were evaluated to determine their effect on the accuracy and precision of measured concentrations of selected organic compounds and metals. The concentration of pollutants in dosed seawater before and after exposure to stainless steel and Teflon centrifuge tubes, glass fiber and Nuclepore filters, cellulose dialysis membranes and fritted glass tubes were compared. Exposure to most hardware materials did not significantly affect the concentration of four metals (Cd, Cr, Cu, Pb) but there was significant loss (up to 79 percent) of two organic compounds (fluoranthene, p,p'-DDE) to almost all the hardware materials tested. Of five commonly used IW collection methods (centrifuging, centrifugal drainage or basal cup, squeezing, vacuum filtration and dialysis) investigated, the centrifuge method was judged the most accurate and precise for polycyclic aromatic hydrocarbons and PCBs. All IW collection methods tested showed high variability for the metals. As a result, with one exception (Cu), there was no significant difference detected in the accuracy of the methods for metals.},
doi = {},
url = {https://www.osti.gov/biblio/6452158}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}

Technical Report:
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