Laboratory of Analytical Atomic Spectroscopy / Laboratories / Analytical Chemistry / Departments / Structures / Faculty of Chemistry and Pharmacy / Faculties / The University / Home - Софийски университет "Св. Климент Охридски"

Analytical atomic spectroscopy
Speciation analysis
Methods for separation and preconcentration
Synthesis and characterisation of new sorbents based on ion-imprinted polymers and noble metal nanoparticles
Analysis of environmental samples, biological samples, food samples and beverages – development of analytical procedures
Analysis of pharmaceutical samples – development of analytical procedures
Development of analytical procedures for determination of bioavailable fractions of chemical elements in foods, beverages and environmental samples
Chemical elements – bioavailability and distribution in the system “soil – plant” in regions. Accumulation in bioaccumulators and excluders
Chemical elements in honey and pollen samples from regions with serpentine soils – comparative investigation Bulgaria – Albania
Characterisation of Bulgarian royal jelly – chemical elements
Nanosized carriers of cytostatics – synthesis and characterisation

Project Activity – (Research Projects in the last 5 years)

Smart materials for speciation analysis, National Science Fund of Bulgaria (DN 19/10 SmartSpeciation), Project leader: Assoc. Prof. I. Dakova, 2017 –
New approach for botanical origin determination of Bulgarian monofloral honeybee honeys, National Science Fund of Bulgaria, Project leader: Assist. Prof. E. Mladenova, 2017 –
Traditional Bulgarian Wines – characteristics and identification, National Science Fund of Bulgaria (B 02/217), Project leader: Prof. I. Karadjova, 2014 – 2019.
New materials as sorbents for separation and concentration of trace pollutants in food, beverages and environmental samples, National Science Fund of Bulgaria, Bilateral project Bulgaria/India (DNTS/India 05/3), Project leader: Prof. I. Karadjova, 2013 –

Research Cooperation

Prof. Т. Stafilov, University “St. Cyril and Methody” Skopje, North Macedonia
Assoc. Prof. Belgin Isgi, Uludag University, Bursa, Turkey
Prof. Vera Slaveykova, University of Geneva, Swiss
Assoc. Prof. D. Pavlova, Faculty of Biology, Sofia University, Bulgaria
Assoc. Prof. R. Balkanska, Institute of Animal Science, Kostinbrod, Bulgaria
Basin Directorates, Ministry of Environment and Water, Bulgaria

Publications from the last 5 years

P. Vasileva, L. Djerahov, I. Karadjova, Raffinose capped silver nanoparticles: A new localized surface plasmon resonance based sensor for selective quantification of Cr(VI) in waste waters, Molecules 26 (17) Article number 5428 (2021) doi: 10.3390/molecules26175418
T. Yordanova, P. Vasileva, I. Karadjova, Noble metal nanocomposites as tools for fast and reliable speciation analysis of mercury in water samples, Int J Environ An Chem (2020) https://doi.org/10.1080/03067319.2020.1734193
E. Petrova, Y. Gluhcheva, E. Pavlova, I. Vladov, Ts. Voyslavov, J. Ivanova, Effect of acute sodium nitrite intoxication on some essential biometals in mouse spleen, J Trace Elem Med Bio 58 (2020) 12643. DOI: 10.1016/j.jtemb.2019.126431
P. Vasileva, I. Dakova, T. Yordanova, I. Karadjova, New composite sorbent for speciation analysis of soluble chromium in textiles, Open Chemistry 17(1) (2019) 1095. DOI: 10.1515/chem-2019-0115
Ts. Voyslavov, S. Tsakovski, V. Simeonov, S. Arpadjan, The effect of iron and manganese oxyhydroxide soil fraction on the occurence of Cr(VI), Bulg Chem Commun 50 (3) (2018) 417.
R. Balkanska, E. Mladenova, I. Karadjova, Quantification of selected trace and mineral elements in Royal Jelly from Bulgaria by ICP-OES and ETAAS, J. Apic. Sci., 51(2) (2017) 223. DOI: 10.1515/jas-2017-0021
P. Vasileva, T. Alexandrova, I. Karadjova, Application of starch-stabilized silver nanoparticles as a colorimetric sensor for mercury(II) in 0.005 mol/L nitric acid, Journal of Chemistry 2017 (2017) Article ID 6897960. https://doi.org/10.1155/2017/6897960
E. Stoyanova, P. Petrov, I. Karadjova, G. Momekov, N. Koseva, Cisplatin delivery vehicles based on stabilized polymeric aggregates comprising poly(acrylic acid) chains, Polymer Journal 49 (2017) 607. DOI: 10.1038/pj.2017.29
M. Mitreva, I. Dakova, I. Karadjova, Iron(II) ion imprinted polymer for Fe(II)/Fe(III) speciation in wine, Microchem. J., 132 (2017) 238. DOI: 10.1016/j.microc.2017.01.023
Karadjova, I. Dakova, T. Yordanova, P. Vasileva, Nanomaterials for elemental speciation (Critical Review), J. Anal. At. Spectrom. 31 (2016) 1949. DOI: 10.1039/C6JA00168H
L. Djerahov, P. Vasileva, I. Karadjova, Self-standing chitosan film loaded with silver nanoparticles as a tool for selective determination of Cr(VI) by ICP-MS, Microchem. J. 129 (2016) 23. DOI: 10.1016/j.microc.2016.06.007
L. Djerahov, P. Vasileva, I. Karadjova, R. M. Kurakalva, K. K. Aradhi, Chitosan film loaded with silver nanoparticles - sorbent for solid phase extraction of Al(III), Cd(II), Cu(II), Co(II), Fe(III), Ni(II), Pb(II) and Zn(II), Carbohydrate Polymers 147 (2016) 45 – 52. DOI: 10.1016/j.carbpol.2016.03.080
M. Mitreva, I. Dakova, T. Yordanova, I. Karadjova, Chromate surface-imprinted silica gel sorbent for speciation of Cr in surface waters, Turk J Chem 40 (2016) 921. DOI: 10.3906/kim-1606-2
Ts. Voyslavov, S. Tsakovski, S. Arpadjan, Determination of hexavalent chromium in aqueous and alkaline soil extracts, Turk J Chem 40 6 (2016) 944. DOI: 10.3906/kim-1605-82

Book chapter: I. Karadjova, T. Yordanova, I. Dakova, P. Vasileva, Smart Materials in Speciation Analysis (in Handbook of Smart Materials in Analytical Chemistry, Publisher: Wiley), 2019, https://doi.org/10.1002/9781119422587.ch24

Teaching Activity

Lecturer	Discipline	Specialty
Prof. I. Karadjova Assoc. Prof. I. Dakova	Analytical chemistry	Chemistry, Ecochemistry, Computational chemistry, Nuclear chemistry, Chemical engineering and modern materials, Chemistry and Informatics
Prof. I. Karadjova	Applied analytical atomic spectroscopy	Modern spectral and chromatographic methods for analysis (Master students)
Assoc. Prof. I. Dakova	Combined and hybride analytical methods. Speciation analysis	Modern spectral and chromatographic methods for analysis (Master students)
Assoc. Prof. I. Dakova	Methods for separation and preconcentration	Chemistry
Assoc. Prof. I. Dakova	Analytical chemistry and methods for analysis	Biotechnology
Assist. Prof. T. Yordanova	Modern problems of chemical analysis	Chemistry
Assist. Prof. T. Yordanova	Analytical chemistry and methods for analysis	Biotechnology (Part-time education)
Assist. Prof. E. Mladenova	Determination of micro concentrations of chemical elements	Chemistry
Assist. Prof. E. Mladenova	Analytical chemistry	Ecology and Environmental Protection (Part-time education)
Prof. I. Karadjova	Ecolegislation	Ecochemistry
Prof. I. Karadjova	Ecochemistry of soils	Ecochemistry
Assist. Prof. Ts.Voyslavov	Instrumental analysis (Electrochemical methods)	Chemistry, Chemical engineering and modern materials, Ecochemistry, Computational chemistry, Nuclear chemistry
Assist. Prof. Ts. Voyslavov	Modern analytical laboratories – practice and accreditation	Ecochemistry, Computational chemistry, Nuclear chemistry, Chemical engineering and modern materials, Chemistry and Informatics
Prof. I. Karadjova	Training of laboratory staff	Postgraduate Qualification

Former Ph.D and Research Students (for last 5 years)

Since 2017 – defended 24 master and bachelor theses and 2 PhD students obtained doctoral degree.