Elementna analiza pjenušaca Zagrebačke županije spektrometrijom masa uz induktivno spregnutu plazmu (ICP-MS)

master's thesis

• Title (english): Multi-elemental analysis of sparkling wines of Zagreb County by inductively coupled plasma-mass spectrometry (ICP-MS )
• Author: Lana Živković
• Mentor: Sanda Rončević (mentor)
• Committee member: Mirta Rubčić (predsjednik povjerenstva)
• Committee member: Đani Škalamera (član povjerenstva)
• Committee member: Sanda Rončević (član povjerenstva)
• Committee member: Tomislav Jednačak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Chemistry); Zagreb
• Defense date and country: 2022-09-23, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract

Vino je otopina kompleksnog sastava koja se sastoji od vode, alkohola, šećera, organskih i
anorganskih komponenti. U suvremenim enološkim pristupima interes za proizvodnju
pjenušavih vina naglo je porastao. Na sastav vina utječu mnogi čimbenici, a neki od njih su
sastav zemlje na kojoj raste vinova loza, klimatski uvjeti (temperatura, vlaga, količina
padalina), proces fermentacije i drugi. Između različitih spojeva koji se analiziraju pri
određivanju autentičnosti i porijekla, najviše informacija moguće je dobiti poznavanjem
elementnog sastava. Elementni potpis vina ovisi o prirodnim i antropogenim izvorima. Cilj
ovog rada je odrediti elementni sastav 34 uzorka pjenušaca s područja Zagrebačke županije
spektrometrijom masa uz induktivno spregnutu plazmu te odrediti koncentracije izabranih
elemenata. Izmjereni rezultati obrađeni su multivarijatnim statističkim metodama, analizom
glavnih komponenata i hijerarhijskom analizom klastera, kao pomoć pri klasifikaciji i
raspoznavanju specifičnih značajki pjenušaca.

Abstract (english)

Wine is a solution that has a complex composition and it consists of water, alcohol, sugar, organic and
inorganic components. In modern oenological approaches, interest in the production of sparkling wines
has grown rapidly. The composition of wine is influenced by many factors, some of which are the
composition of the land where the vines grow, climatic conditions (temperature, humidity, rainfall), the
fermentation process and others. Among the various compounds that are analyzed when determining
authenticity and origin, the most information can be obtained by knowing the elemental composition.
The elemental signature of wine depends on natural and anthropogenic sources. The aim of this work is
to determine the elemental composition of 34 samples of sparkling wines from the Zagreb County using
inductively coupled plasma mass spectrometry and to determine the concentrations of selected elements.
The measured results will be processed using multivariate statistical methods, principal component
analysis and hierarchical cluster analysis, as an aid in the classification and recognition of specific
features of sparkling wines.

• Keywords: elementna analiza; pjenušci; multivarijatne statističke metode
• Keywords (english): multi-elemetal analysis; sparkling wines; multivariate statistical methods
• Language: croatian
• URN:NBN: urn:nbn:hr:217:712738
• Study programme: Title: Graduate university studies in chemistry; specializations in: Research programme; Course: Research programme; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2024-09-23
• Created on: 2022-10-20 13:54:11