Analysis of trace amounts to detect exposure to triclosan and triclocarban in crops grown in soil amended with human biosolids
| dc.contributor.author | Malberg, Mary Gretchen, author | |
| dc.contributor.author | Ramsdell, Howard, advisor | |
| dc.contributor.author | Legare, Marie, committee member | |
| dc.contributor.author | Sharvelle, Sybil, committee member | |
| dc.date.accessioned | 2019-01-07T17:19:52Z | |
| dc.date.available | 2019-01-07T17:19:52Z | |
| dc.date.issued | 2018 | |
| dc.description.abstract | A method to detect trace amounts of both triclosan, (TCS) and triclocarban (TCC) using gas chromatography with an electron capture detector (GC/ECD) was created to test compound uptake by dryland corn from biosolids fertilization. Corn was harvested from a field that had been amended with human biosolids since 1982 which was part of a research study being conducted by Colorado State University, College of Agricultural Sciences, Soil and Crop Sciences Department. Both TCS and TCC are lipid soluble and contain functional groups that could be derivatized. Derivatization of the compounds improved chromatography results by making compounds more volatile and stable at higher temperatures and increase detection limits to 0.05 ng/ml for TCS and 0.1 ng/ml for TCC. Derivatization was done with BSTFA (N,O-bis(trimethylsilyl) trifluoroacetamide) + 1% TMCS (trimethylchlorosilane ). The method described in this paper holds the potential for detecting other pharmaceutical products, compounds from personal care products, and over-the-counter agents that contain halogenated phenol groups. Triclocarban was not detected in corn from the control or biosolid amended fields at statistically significant amounts. Triclosan was found in increased amounts in corn that was grown in fields that were amended with biosolids. The mean results for TCS in corn from the control field were 11 μg/ml and for the bio-solid amended field the mean was 140 μg/ml, indicating that corn from bio-solid amended fields had a greater than 10-fold increase in concentrations of TCS compared to fields not amended with human biosolids. | |
| dc.format.medium | born digital | |
| dc.format.medium | masters theses | |
| dc.identifier | Malberg_colostate_0053N_15260.pdf | |
| dc.identifier.uri | https://hdl.handle.net/10217/193219 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation.ispartof | 2000-2019 | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.title | Analysis of trace amounts to detect exposure to triclosan and triclocarban in crops grown in soil amended with human biosolids | |
| dc.type | Text | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| thesis.degree.discipline | Environmental and Radiological Health Sciences | |
| thesis.degree.grantor | Colorado State University | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science (M.S.) |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- Malberg_colostate_0053N_15260.pdf
- Size:
- 495.65 KB
- Format:
- Adobe Portable Document Format