Version 1
: Received: 28 January 2024 / Approved: 29 January 2024 / Online: 29 January 2024 (06:44:57 CET)
How to cite:
Nadler, D. Spectrophotometry in PFOA Research: Preliminary Results for Fate Analysis Studies in a Small Research Laboratory. Preprints2024, 2024011995. https://doi.org/10.20944/preprints202401.1995.v1
Nadler, D. Spectrophotometry in PFOA Research: Preliminary Results for Fate Analysis Studies in a Small Research Laboratory. Preprints 2024, 2024011995. https://doi.org/10.20944/preprints202401.1995.v1
Nadler, D. Spectrophotometry in PFOA Research: Preliminary Results for Fate Analysis Studies in a Small Research Laboratory. Preprints2024, 2024011995. https://doi.org/10.20944/preprints202401.1995.v1
APA Style
Nadler, D. (2024). Spectrophotometry in PFOA Research: Preliminary Results for Fate Analysis Studies in a Small Research Laboratory. Preprints. https://doi.org/10.20944/preprints202401.1995.v1
Chicago/Turabian Style
Nadler, D. 2024 "Spectrophotometry in PFOA Research: Preliminary Results for Fate Analysis Studies in a Small Research Laboratory" Preprints. https://doi.org/10.20944/preprints202401.1995.v1
Abstract
The degradation of the persistent compound perfluorooctanoic acid (PFOA) in water by ultraviolet light in the presence and absence of hydrogen peroxide was examined. A laboratory experiment was designed to answer the question: is UV spectrophotometry feasible for PFOA research? Spectrophotometry was able to measure the degradation of PFOA, but a very high concentration was required. The 1 mg/L used is very concentrated when compared to the 70 ng/L suggested level in drinking water. A UV/Visible diode array scanning spectrophotometer was used to measure changes in PFOA concentrations after 15-minute exposures to ultraviolet light and ultraviolet light with hydrogen peroxide. A noticeable drop in concentration was measured for a 1 mg/L sample. The reaction kinetics were calculated and are likely skewed due to the greater concentration of experimental PFOA. These preliminary results will allow for the next phases of PFOA research to commence, including confirmation through liquid chromatography/mass spectrometry of low concentrations and developing bioremediation techniques.
Keywords
spectrophotometry; PFOA; UV; oxidation
Subject
Environmental and Earth Sciences, Water Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
