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Določanje kalcija v mlečnem kremnem namazu : diplomska naloga = Determination of calcium in dairy cream spread : graduation thesisSmrkolj, PolonaNamen diplomske naloge je bil najti najprimernejǴo analitsko metodo za dolořanje kalcija v mleřnem kremnem namazu s krispiji in dodanimkalcijem. Kalcij v vzorcu smo dolořali s permanganometriřno ... metodo v raztopini pepela vzorca in z metodo merjenja atomske absorpcije raztopine pepela vzorca v plamenu N2O - acetilen in z metodo merjenja atomske absorpcijeemulzije vzorca v plamenu N2O - acetilen, ki jo pripravimo z ultrazvokom. NajviǴjo vrednost vsebnosti kalcija smo dobili pri permanganometriřni metodi 0,262 % in tudi najviǴji standardni odklon 0,022 % kalcija. Koliřina kalcija v vzorcu, dolořena z metodo PAAS v emulziji, je 0,252 % in standardni odklon 0,005 % kalcija. Z metodo PAAS v raztopini pepelaje vrednost kalcija 0,243 % in standardni odklon 0,005 % kalcija. S statistiřno analizo smo ugotovili skladnost rezultatov uporabljenih metod (p ?0,01). S staliǴřa natanřnosti sta prav gotovo najprimernejǴi metodi PAAS v pepelu vzorca in predvsem PAAS v emulziji vzorca. Tudi s staliǴřa trajanja procesa sta primernejǴi ti dve metodi, predvsem PAAS v emulziji. Vendar pa je za uporabo v industriji najveřkrat najpomembnejǴi finanřni vidik, zato pa je najprimernejǴa permanganometriřna metoda.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [BF, Oddelek za živilstvo] : [P. Smrkolj], 2000Language - slovenianCOBISS.SI-ID - 2432632
Author
Smrkolj, Polona
Other authors
Štupar, Janez |
Golob, Terezija
Topics
kalcij |
določanje kalcija |
mlečni izdelki |
mlečni kremni namaz |
analizne metode |
permanganometrična metoda |
plamenska atomska absorpcijska sektroskopija |
priprava vzorca z ultrazvokom |
priprava vzorca z ultrazvokom |
calcium |
determination of calcium |
dairy products |
dairy cream spread |
analytical techniques |
permanganometric method |
flame atomic absorption spectroscopy |
preparation of emulsion with ultrasound |
preparation of emulsion with ultrasound
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Hodnik DN 0000000963 IN: 0012342 Hodnik DN 963 IN: 0012342 |
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Štupar, Janez | 01856 |
Golob, Terezija | 09980 |
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