Title

Phytoforensic-Dendrochemistry using NAA Techniques

Presenter Information

Zackary Stone

Department

Nuclear Engineering and Radiation Science

Major

Nuclear Engineering

Research Advisor

Burken, Joel G. (Joel Gerard)
Usman, Shoaib

Advisor's Department

Civil, Architectural and Environmental Engineering

Second Advisor's Department

Nuclear Engineering and Radiation Science

Funding Source

Mining and Nuclear Engineering

Abstract

Plants and trees can tell us the history of a geographic area through their intake from their environment. There have been significant developments in techniques to identify the history of contaminants in plant materials to map out potential pollutant sites. So far, the traditional methods, though successful, are limited in the minimum detection level, MDL, particularly for inorganic or elemental analysis. Neutron Activation Analysis technique has the potential to reduce the MDLs of certain environmental contaminants (inorganic material, metals, etc.) to new levels to assess the extent of present contamination and document pollution history with greater analytic accuracy. NAA is a non-destructive technique where the sample is bombarded with neutrons, transmuting the nucleus of a target atom. The transmuted atom subsequently produces signature emission of gamma radiation. Based upon the spectrum analysis, the elemental composition can be obtained and with proper calibration, quantitative analysis of the elemental composition of the specimen can be calculated. Utilizing Missouri S&T nuclear reactor, we are developing and refining NAA based phytoforensic techniques for several environmentally significant elements like, As, V, Cr, Ni, Zn, and Mo.

Biography

Zackary is a senior in Nuclear Engineering at Missouri University of Science and Technology and expects to receive his degree in May 2012. He has already been accepted into the master’s program for Nuclear Engineering at MS&T and plans on beginning in the summer of 2012.

Research Category

Research Proposals

Presentation Type

Poster Presentation

Document Type

Poster

Location

Upper Atrium/Hallway

Presentation Date

10 Apr 2012, 1:00 pm - 3:00 pm

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Apr 10th, 1:00 PM Apr 10th, 3:00 PM

Phytoforensic-Dendrochemistry using NAA Techniques

Upper Atrium/Hallway

Plants and trees can tell us the history of a geographic area through their intake from their environment. There have been significant developments in techniques to identify the history of contaminants in plant materials to map out potential pollutant sites. So far, the traditional methods, though successful, are limited in the minimum detection level, MDL, particularly for inorganic or elemental analysis. Neutron Activation Analysis technique has the potential to reduce the MDLs of certain environmental contaminants (inorganic material, metals, etc.) to new levels to assess the extent of present contamination and document pollution history with greater analytic accuracy. NAA is a non-destructive technique where the sample is bombarded with neutrons, transmuting the nucleus of a target atom. The transmuted atom subsequently produces signature emission of gamma radiation. Based upon the spectrum analysis, the elemental composition can be obtained and with proper calibration, quantitative analysis of the elemental composition of the specimen can be calculated. Utilizing Missouri S&T nuclear reactor, we are developing and refining NAA based phytoforensic techniques for several environmentally significant elements like, As, V, Cr, Ni, Zn, and Mo.