Violeta Stefanova

Co-precipitative pre-concentration with sodium diethyldithiocarbamate and ICP-AES determination of Se, Cu, Pb, Zn, Fe, Co, Ni, Mn, Cr and Cd in water

D. Atanassova, Violeta Stefanova, E. Russeva · Talanta · 1998 · 106 citations

Natural Sciences, Chemistry, Environmental Sciences +14

Direct ultrasound-assisted extraction of heavy metals from sewage sludge samples for ICP-OES analysis

Dimitar Hristozov, Claudia E. Domini, Veselin Kmetov et al. · Analytica Chimica Acta · 2004 · 66 citations

Natural Sciences, Chemistry, Environmental Engineering +14

Microwave-assisted cloud point extraction of Rh, Pd and Pt with 2-mercaptobenzothiazole as preconcentration procedure prior to ICP-MS analysis of pharmaceutical products

Kiril Simitchiev, Violeta Stefanova, Veselin Kmetov et al. · Journal of Analytical Atomic Spectrometry · 2008 · 63 citations

Natural Sciences, Chemistry, Pharmaceutical Analysis +13

Comparison of inductively coupled plasma mass spectrometry and colorimetric determination of total and extractable phosphorus in soils

Krasimir Ivanov, Penka Zaprjanova, Milena Petkova et al. · Spectrochimica Acta Part B Atomic Spectroscopy · 2012 · 47 citations

Agriculture, Earth Sciences, Soil Sciences +14

Investigation of ICP-MS spectral interferences in the determination of Rh, Pd and Pt in road dust: Assessment of correction algorithms via uncertainty budget analysis and interference alleviation by preliminary acid leaching

Kiril Simitchiev, Violeta Stefanova, Veselin Kmetov et al. · Talanta · 2008 · 30 citations

Natural Sciences, Chemistry, Analytical Chemistry +16