Ultratrace determination of aluminium in seawater and complex samples ...

• Main Author: Tria, J
• Format: Thesis
• Language: unknown
• Published: University Of Tasmania 2023
• Subjects: Antarctic; Antarc*
• Online Access: https://dx.doi.org/10.25959/23242598; https://figshare.utas.edu.au/articles/thesis/Ultratrace_determination_of_aluminium_in_seawater_and_complex_samples/23242598

Oceanographers use surface aluminium concentrations in open-ocean seawater as a tracer to fingerprint the location and magnitude of atmospheric dust deposition. It has become increasingly important to understand the role that such deposition plays in supplying trace elements to surface waters and consequently the effects such episodic supply has on moderating biological processes. For the purpose of real time analysis, quantification must be carried out by a system capable of being deployed shipboard. The most commonly employed technique for this purpose is flow injection analysis (FIA). This project aimed to develop a method for the onboard quantification of aluminium in seawater, specifically for the analysis of Antarctic surface waters. Initially, the project focussed on the establishment and optimisation of a FIA system incorporating fluorescent detection ·of the aluminium-lumogallion complex. Significant variables affecting the lumogallion chemistry; including, reaction pH, lumogallion concentration ...