Abstract

Ion-selective electrodes (ISEs) have extensively been used for food analysis, as medical diagnostic tools, and for some environmental applications. However, ISEs are hindered by the need of a bulky reference electrode and the pre-conditioning step of the sensor, which can often be lengthy. This work will discuss how the direct addition of target analyte into the cocktail sensing membrane can circumvent the pre-conditioning step. Furthermore, the work is presented in an optimized ready-to-use single strip design, where the bulky glass reference electrode (RE) is no longer needed. The bulky RE was replaced by drop casting a simple two-component mixture consisting of the co-polymer methyl methacrylate-co-decyl methacrylate and the ionic liquid 1-Ethyl-3-methylimidazolium bis (trifluoromethane sulfonyl) amide. Furthermore, this work will also highlight the benefits of solid-contact ISEs, specifically focusing on two solid- contact platforms: 1) paper-based and 2) a micro-electrode platform. Paper-based based sensors were designed to be used as a possible diagnostic tool to be implemented in undeveloped countries to monitor low levels of potassium and iodide, as model ions. The micro(µ) ISEs were applied for the in-situ analysis of zinc in citrus plants as a mean to monitor and assess disease progression or therapy.

Graduation Date

2018

Semester

Summer

Advisor

Chumbimuni Torres, Karin

Degree

Master of Science (M.S.)

College

College of Sciences

Department

Chemistry

Degree Program

Chemistry

Format

application/pdf

Identifier

CFE0007243

URL

http://purl.fcla.edu/fcla/etd/CFE0007152

Language

English

Release Date

August 2018

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Included in

Chemistry Commons

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