Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Determination Of Nitrate In Aqueous Media, Ebony Arauz Tellez, John Bohannon, Rebecca Mills, Virginia Tam, Isabelle Villarreal, Melissa C. Rhoten Oct 2022

Determination Of Nitrate In Aqueous Media, Ebony Arauz Tellez, John Bohannon, Rebecca Mills, Virginia Tam, Isabelle Villarreal, Melissa C. Rhoten

Spring Showcase for Research and Creative Inquiry

Determining the amount of inorganic ions in aqueous media is important in the food industry and environmentally. In the environment high levels of ions like nitrate (NO3-), nitrite (NO2-), and phosphate (PO43-) can lead to unhealthy conditions for aquatic species. Similarly, high levels of nitrate and nitrite can cause health issues in humans. One method for determining nitrate levels in aqueous samples involves reducing the nitrate species to nitrite via a redox reaction with finely divided zinc powder followed by conversion to a diazonium salt and complexation with 1-napthylamine to form a …


Chem 403: Analysis Of Arsenic In Wine Using Xrf, Hannah Meyls Apr 2020

Chem 403: Analysis Of Arsenic In Wine Using Xrf, Hannah Meyls

2020 Virtual Spring Student Showcase for Research and Creative Inquiry

Arsenic contamination in food and beverages is a problem due to the harm it can cause consumers. Currently in the United States there is no regulation limit. Red, white, and pink wines will be analyzed for their concentration of inorganic arsenic. Analysis of the wines will be analyzed by x-ray fluorescence spectroscopy (XRF). From this experiment we hope to develop a new method for measuring low concentrations of arsenic in wine.