Assoc. Professor and Reader
CONTACT DETAILS:
Address: School of Chemistry, University of Melbourne,
Parkville, VIC 3010 Australia
Room: 212
Email: s.kolev@unimelb.edu.au
Teaching responsibilities
Field of expertise
Chemical Sensors, Membranes and Metal Hyperaccumulating
Plants in Environmental Monitoring and Remediation
Flow Injection Analysis
Flow Injection Analysis (FIA) is a powerful flow-through technique
for solution manipulation prior to detection. It allows inexpensive
automation of chemical analysis, and is fast and economical with
respect to sample and reagent consumption. Most of my research
in this area has been focused on the theory and application of
various flow injection systems. The associated theoretical work
involves the mathematical modelling and optimization of such flow
systems. I am particularly interested in the application of FIA
for the direct determination of environmental pollutants such
as heavy metals (Cu, Cd, Pb, Zn, As, Sb, Hg), cyanide, ammonia
and phenols in natural waters and industrial wastewaters. Volatile
pollutants can be determined successfully in flow injection systems
incorporating gas-diffusion or pervaporation cells, where the
pollutants of interest are separated on-line prior to detection
from a sample matrix usually containing suspensions, emulsions,
surfactants or corrosive compounds.
Chemical Sensors
My interests in this area cover the development, study and application
of three main classes of chemical sensors:
Micro chemical sensors allow the construction of portable chemical
analyzers suitable for on-site environmental monitoring.
Membrane Extraction
Solvent extraction has been widely used in metal separation and
concentration in the recycling of industrial metal resources and
wastewater treatment processes. One of the most important problems
associated with industrial solvent extraction is the large inventory
of expensive extractants and solvents required. An alternative
environmentally friendly and inexpensive approach for metal separation
and concentration can be based on the use of liquid membranes.
My research interests in this area are centered on the theory
and application of membrane extraction involving PVC based polymer
liquid membranes incorporating liquid ion-exchangers such as Aliquat
336 chloride and di-2-ethylhexyl-phosphoric acid. These membranes
have shown promising results for the recovery of various metals
ions such as Au(III), Cd(II), Cu(II), Pd(II), Co(II), and Ni(II)
from their acidic aqueous solutions.
Metal Hyperaccumulating Plants
Metal hyperaccumulating plants have the ability to not only survive
in soils rich in heavy metals but they can also accumulate these
heavy metals in their above ground tissues. These unique properties
of metal hyperaccumulating plants make them potentially very useful
in soil phytoremediation and biomining. The mechanism of metal
hyperaccumulation is not completely understood. My research interests
in this area are focused on studying the mechanism of cobalt and
nickel hyperaccumulation in various plant species.
For further information visit the Kolev
Research Group page.
Selected Publications:
- S.Y.Sheikheldin, T.J.Cardwell, M.D. Luque de Castro,
R.W.Cattrall and S.D.Kolev, Environ. Sci. Technol ,
. 35 (2001) 178-181.
- T.Rupasinghe, T.J.Cardwell, M.D. Luque de Castro,
R.W.Cattrall and S.D.Kolev, Anal. Chim. Acta,
445 (2001) 229-238.
- T.J.Sands, T . J.Cardwell, R . W.Cattrall,
J . R.Farrell, P . J.Iles and S.D.Kolev , Sensors Actuators B.
, 85 (2002) 33-41.
- S.D.Kolev, Sep. Sci. Technol
, 38 (2003) 237-245.
- S.Satienperakul, S.Y.Sheikheldin, T.J.Cardwell,
R.W.Cattrall, M.D. Luque de Castro, I.D. McKelvie and S.D.Kolev,
Anal. Chim. Acta , 485
(2003) 37-42.
- L.Wang, T.J.Cardwell, M.D. Luque de Castro,
R.W.Cattrall and S.D.Kolev, Talanta , 60
(2003) 1269-1275.
- S.Satienperakul, T.J.Cardwell, R.W.Cattrall,
I.D.McKelvie, D.M.Taylor and S.D.Kolev, Talanta , 62
(2004) 631-636.
- T.Rupasinghe, T.J.Cardwell, R.W.Cattrall,
I.D.Potter and S.D.Kolev, Determination of arsenic by pervaporation-flow
injection hydride generation and permanganate spectrophotometric
detection, Anal. Chim. Acta, 510
(2004) 225-230.
- N.Amini, T.J.Cardwell, R.W.Cattrall, R.J.S.Morrison,
and S.D.Kolev, On-line determination of mercury(II) by membrane
separation flow injection analysis, Talanta , 63
(2004) 1069-1075.
- N.Amini, T.J.Cardwell, R.W.Cattrall and S.D.Kolev,
On-line determination of mercury(II) by membrane separation
flow injection analysis, Anal. Chim. Acta, 539 (2005)
203-207.
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