diplomsko delo
Abstract
V treh vzorcih vin sem z atomsko absorpcijsko in atomsko emisijsko spektroskopijo določevala koncentracije bakra, železa, natrija in kalija. Vzorca 1 in 3 sta bila vzorca belega vina, vzorec 2 pa je bil rdeče vino. Ugotavljala sem vpliv matrice oziroma topila na določitev kovin z eksternim standardom in s standardnim dodatkom. Primerjala sem določitve v deionizirani vodi, 10% etanolu, 1% HNO3 in 1% HCl. Ugotovila sem, da se rezultati v različnih topilih in vrstah vin razlikujejo, kar je lahko posledica vpliva matrice na določevanje. Koncentracije določene z metodama AAS in AES so primerljive.
Keywords
analizna kemija;vino;kalij;natrij;železo;baker;analizne metode;atomska absorpcijska spektroskopija;AAS;atomska emisijska spektroskopija;AES;standardni dodatek;diplomska dela;
Data
Language: |
Slovenian |
Year of publishing: |
2019 |
Typology: |
2.11 - Undergraduate Thesis |
Organization: |
UL FKKT - Faculty of Chemistry and Chemical Technology |
Publisher: |
[K. Kočevar] |
UDC: |
543.42:546.3/.9:663.2(043.2) |
COBISS: |
1538311363
|
Views: |
939 |
Downloads: |
255 |
Average score: |
0 (0 votes) |
Metadata: |
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Other data
Secondary language: |
English |
Secondary abstract: |
Determination of copper, iron, sodium and potassium in wine samples by atomic absorption and atomic emission spectroscopy in three wine samples. Samples number 1 and number 3 were white wine and sample number 2 was a red wine. To determine the influence of matrix or solvent on the analysis I used external standard calibration and standard addition methods. I also compared concentrations of analytes in deionized water, 10% ethanol, 1% HNO3 and 1% HCl. My results varied in different solvents and types of wine, which may be the consequence of the complex matrix. Concentrations determined by atomic absorption and atomic emission spectroscopy were similar. |
Secondary keywords: |
wine;potassium;sodium;iron;copper;AAS;AES;standard addition; |
Type (COBISS): |
Bachelor thesis/paper |
Study programme: |
1000373 |
Embargo end date (OpenAIRE): |
1970-01-01 |
Thesis comment: |
Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemija |
Pages: |
43 str. |
ID: |
11215360 |