Laboratory comparison of polyethylene and dialysis membrane diffusion samplers

Groundwater Monitoring & Remediation
By: , and 

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Abstract

The ability of diffusion samplers constructed from regenerated cellulose dialysis membrane and low density, lay flat polyethylene tubing to collect volatile organic compounds and inorganic ions was compared in a laboratory study. Concentrations of vinyl chloride, cis‐1, 2‐dichloroethene, bromochloromethane, trichloroethene, bromodichloromethane, and tetrachloroethene collected by both types of diffusion samplers reached equilibrium with the concentrations of these compounds in test solution within three days. Concentrations of bromide and iron collected by the dialysis membrane diffusion samplers reached equilibrium with the concentrations of these compounds in a test solution within three to seven days. No detectable concentrations of bromide or iron were found in polyethylene diffusion samplers even after 21 days. No measurable concentrations of aluminum, arsenic, barium, cadmium, chromium, iron, mercury, manganese, nickel, and lead, or sulfide, were leached out of dialysis membrane samplers over seven days. Compared with using a gas‐tight syringe to sample the diffusion sampler, clipping the bag and pouring the water sample into a sample vial resulted in only a small 6.2% average loss of volatile organic compounds. Dialysis membrane diffusion samplers offer promise for use in sampling ground water for inorganic constituents as well as volatile organic compounds.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Laboratory comparison of polyethylene and dialysis membrane diffusion samplers
Series title Groundwater Monitoring & Remediation
DOI 10.1111/j.1745-6592.2004.tb00704.x
Volume 24
Issue 1
Year Published 2004
Language English
Publisher Wiley
Contributing office(s) New Jersey Water Science Center
Description 7 p.
First page 53
Last page 59
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