Abstract

The Potential of Phytoscreening for Plume Delineation at Contaminated Sites Has Promoted Interest in Innovative, Sensitive Contaminant Sampling Techniques. Solid-Phase Microextraction (SPME) Methods Have Been Developed, Offering Quick, Undemanding, Noninvasive Sampling Without the Use of Solvents. in This Study, Time-Weighted Average SPME (TWA-SPME) Sampling Was Evaluated for in Planta Quantification of Chlorinated Solvents. TWA-SPME Was Found to Have Increased Sensitivity over Headspace and Equilibrium SPME Sampling. using a Variety of Chlorinated Solvents and a Polydimethylsiloxane/carboxen (PDMS/CAR) SPME Fiber, Most Compounds Exhibited Near Linear or Linear Uptake over the Sampling Period. Smaller, Less Hydrophobic Compounds Exhibited More Nonlinearity Than Larger, More Hydrophobic Molecules. using a Specifically Designed in Planta Sampler, Field Sampling Was Conducted at a Site Contaminated with Chlorinated Solvents. Sampling with TWA-SPME Produced Instrument Responses Ranging from 5 to over 200 Times Higher Than Headspace Tree Core Sampling. This Work Demonstrates that TWA-SPME Can Be Used for in Planta Detection of a Broad Range of Chlorinated Solvents and Methods Can Likely Be Applied to Other Volatile and Semivolatile Organic Compounds. © 2012 American Chemical Society.

Department(s)

Civil, Architectural and Environmental Engineering

Comments

Seventh Framework Programme, Grant 213161

International Standard Serial Number (ISSN)

1520-5851; 0013-936X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 American Chemical Society, All rights reserved.

Publication Date

20 Mar 2012

PubMed ID

22332592

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