Title

Measuring the Rate of Ligand Exchange Reactions: Elucidation of Copper and Nickel Toxicity in Aquatic Environments

School Name

Governor's School for Science and Mathematics

Grade Level

12th Grade

Presentation Topic

Environmental Science

Presentation Type

Mentored

Abstract

In this research, the behavior of copper and nickel was studied when exposed to different ligands at various concentrations. Traces of copper and nickel can be found in local water sources, but little is known about just how safe these metals are to the environment, especially nickel. To test how these metals would complex, ligands such as nitrilotriacetic acid (NTA) were tested when mixed with the metal solutions, and spectrofluorimetry was used to analyze the complexing nature. Calcein was used to initiate the reaction, much like the way these metals would complex in a natural environment. The data generated shows how kinetically stable the substance is based on the amount of free calcein remaining over time. The results will help to better understand toxicity in a water source based on its ability to react. This can further help protect from pollution since the behaviors of metals in water can be observed.

Location

Neville 110

Start Date

4-14-2018 9:15 AM

Presentation Format

Oral and Written

COinS
 
Apr 14th, 9:15 AM

Measuring the Rate of Ligand Exchange Reactions: Elucidation of Copper and Nickel Toxicity in Aquatic Environments

Neville 110

In this research, the behavior of copper and nickel was studied when exposed to different ligands at various concentrations. Traces of copper and nickel can be found in local water sources, but little is known about just how safe these metals are to the environment, especially nickel. To test how these metals would complex, ligands such as nitrilotriacetic acid (NTA) were tested when mixed with the metal solutions, and spectrofluorimetry was used to analyze the complexing nature. Calcein was used to initiate the reaction, much like the way these metals would complex in a natural environment. The data generated shows how kinetically stable the substance is based on the amount of free calcein remaining over time. The results will help to better understand toxicity in a water source based on its ability to react. This can further help protect from pollution since the behaviors of metals in water can be observed.