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Analytical method development for Raman spectroscopy


Alexandra Walsh, PhD student at the Department of Marine Sciences will hold her midterm seminar

The aim of this project is to find ways for Raman spectroscopy to develop further in the study of complex matrices. One of the main development points is to improve upon the estimation of one of the central analytical parameters in Raman spectroscopy, limit of detection (LOD). This is done by examining how nonlinear data and LOD estimation based on it can be approached with the help of multivariate tools, such as design of experiments, linear multivariate algorithms, and (if necessary) nonlinear algorithms. These evaluations will be performed on simulated data as well as on data gathered from Raman spectroscopic measurements. Based on the results acquired, the goal is to propose robust methods for prediction of unknown analyte concentrations and LOD estimation from Raman spectra of complex multicomponent matrices. A secondary aim is to generate and analyse data concerning the production of volatile halogenated organic compounds (VHOCs) to further understanding of these compounds and their production.
Raman spectroscopy and chemometrics were selected as methods for this project to study VHOC production and the enzymes responsible. These methods are used in an attempt to acquire qualitative information, and, if possible, quantitative information. Gas chromatography is used to provide complementary data in form of quantitative measurements of halocarbon species.

Föreläsare: Alexandra Walsh

Datum: 2018-12-18

Tid: 10:00 - 11:00

Kategorier: Naturvetenskap, Forskning

Arrangör: Institutionen för marina vetenskaper

Plats: Botanhuset, Carl Skottsbergs gata 22B, 413 19 Göteborg, Sal 10.

Kontaktperson: Anna Godhe

Sidansvarig: Bo Johannesson|Sidan uppdaterades: 2015-06-30

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