Prilagodba propisa za odjeljivanje i dokazivanje anorganskih kationa u smjesama temeljeno na klasičnom postupku selektivnog taloženja i otapanja

master's thesis

• Title (english): Adaptation of the regulations for separation and identification of inorganic cations in mixture based on the classical selective precipitation and dissolution method
• Author: Ivana Lučić
• Mentor: Suzana Inić (mentor)
• Committee member: Suzana Inić (predsjednik povjerenstva)
• Committee member: Jasna Jablan (član povjerenstva)
• Committee member: Ana-Marija Domijan (član povjerenstva)
• Granter: University of Zagreb; Faculty of Pharmacy and Biochemistry; (Department of analytical chemistry); Zagreb
• Defense date and country: 2017-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Pharmacy; Pharmacy

Abstract

Kvalitativna kemijska analiza služi dokazivanju analita u uzorku. U klasičnoj kvalitativnoj kemijskoj analizi
najčešće se izvodi semimikro tehnika čija je prednost u većoj brzini izvođenja analize zbog rada s manjom
količinom tvari, kemikalija i laboratorijskog pribora. Kada se pristupa kvalitativnoj analizi nekog uzorka na
katione i/ili anione prvo se izvode skupinske reakcije sa skupinskim reagensima prema određenom redosljedu, a
za konačnu identifikaciju izvode se selektivne, i ako je moguće specifične reakcije.U diplomskom radu su
pokusima opisani osnovni pojmovi kvalitativne kemijske analize. Izvedene su reakcije kompleksacije, reakcije
fluorescencije, reakcije uz razvijenje plinova, lako hlapljivih i mirisnih produkata, reakcije bojenja plamena,
maskiranje, demaskiranje, redoks-reakcije, reakcije s kiselo-baznim ravnotežama (hidroliza, uloga pufer otopina,
amfoternost). Ispitana je topljivost krutih anorganskih soli u vodi i u kiselini. Provedene su reakcije identifikacije
funkcionalnih skupina u nekim organskim spojevima kao i postupak semimikro odjeljivanja i dokazivanja
anorganskih iona iz smjese temeljen na klasičnoj metodi selektivnog taloženja i otapanja. Svi propisi za
navedene pokuse i postupke prilagođeni su novim uvjetima rada u laboratoriju i laboratorijskom priboru Zavoda
za analitičku kemiju kako bi studentske vježbe koje se izvode na kolegiju Analitička kemija 1 bile što
pouzdanije.

Abstract (english)

Qualitative chemical analysis is used for identification the analyte in the sample. In the classical qualitative
chemical analysis, semi-micro techniques are most often performed, which is advantageous at a faster rate of
analysis because of the low volume of substances, chemicals and laboratory equipment. When a qualitative
analysis of a sample of cations and/or anions is initiated, group reactions with group reagents are performed for
the first according to a particular order, then selective reactions, and if specific reactions are possible for the final
identification. The thesis describes the basic concepts of qualitative chemical analysis by experiments.
Complexation reactions, fluorescence reactions, gas-generated reactions, easily volatile and odorous products,
flame coloring reactions, masking, unmasking, redox reactions, acid-base equilibrium reactions (hydrolysis, role
of buffer solution, amphotericity) were performed. The solubility of solid inorganic salts in water and acid was
tested. Reactions of functional groups identification in some organic compounds were performed as well as the
semi-micro separation and identification of inorganic ions from the mixture based on the classical selective
precipitation and dissolution method. All the regulations for these experiments and procedures were adapted to
new laboratory conditions and laboratory equipment at the Department of Analytical Chemistry to make the
student's exercises on the course Analytical Chemistry 1 as reliable as possible.

• Keywords: kvalitativna kemijska analiza; selektivno taloženje i otapanje; semimikro tehnika
• Keywords (english): qualitative chemical analysis; selective precipitation and dissolution; semi-micro technique
• Language: croatian
• URN:NBN: urn:nbn:hr:163:945926
• Study programme: Title: Pharmacy; Study programme type: university; Study level: integrated undergraduate and graduate; Academic / professional title: magistar/magistra farmacije (magistar/magistra farmacije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-12-03 11:16:30