Accession Number:

ADA610102

Title:

Preconcentration for Improved Long-term Monitoring of Contaminants in Groundwater

Descriptive Note:

Final rept. 25 Jan 2008-15 Jun 2013

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC CENTER FOR BIOMOLECULAR SCIENCE AND ENGINEERING

Personal Author(s):

• White, Brandy J.
• Melde, Brian J.

Report Date:

2014-04-10

Pagination or Media Count:

143.0

Abstract:

Materials for the concentration of nitroenergetic and perchlorate targets from groundwater were developed for monitoring applications. Novel molecular imprinting and structure direction techniques were used to obtain the necessary materials. The potential for concentration of targets from ground and surface waters as well as from soil extracts was demonstrated. The functional characteristics of the materials were evaluated in order to determine the constraints on there use in inline preconcentration of targets ahead of IMS and electrochemical sensing techniques. The systems were subsequently developed at the bench level and function was evaluated using commercially available portable sensors. An initial portable prototype was also developed and evaluated under a field scenario.

Descriptors:

• *CONTAMINANTS
• ADSORBENTS
• EXTRACTION
• GROUND WATER
• MONITORING
• PERCHLORATES
• POROUS MATERIALS
• SPECTROMETRY

Subject Categories:

• Miscellaneous Detection and Detectors
• Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE