List of works by Spas D. Kolev

A gas-diffusion flow injection method coupled with online solid-liquid extraction for the determination of ammonium in solid samples

scientific article published on 27 April 2015

A novel approach for enhancing metal ion separation using acoustic nebulisation

scientific article published on 31 October 2011

A novel low-cost detection method for screening of arsenic in groundwater.

scientific article published on 7 May 2014

A novel on-line organic mercury digestion method combined with atomic fluorescence spectrometry for automatic mercury speciation

scientific article published on 28 June 2018

A paper-based device for measurement of reactive phosphate in water

scientific article published on 24 August 2012

A polymer inclusion membrane composed of the binary carrier PC-88A and Versatic 10 for the selective separation and recovery of Sc

scholarly article in RSC Advances, vol. 8 no. 16, 2018

An automatic flow assembly for on-line dynamic fractionation of trace level concentrations of mercury in environmental solids with high organic load.

scientific article published on 5 May 2017

Applications of everyday IT and communications devices in modern analytical chemistry: A review.

scientific article

Assessment of the pollution potential of mercury contaminated biosolids

article by Cristina Lomonte et al published 2010 in Environmental Chemistry

Chelate-assisted phytoextraction of mercury in biosolids

scientific article

Chemical characterisation and speciation of organic selenium in cultivated selenium-enriched Agaricus bisporus.

scientific article published on 15 June 2013

Colorimetric detection based on localised surface plasmon resonance of gold nanoparticles: Merits, inherent shortcomings and future prospects

scientific article published on 24 February 2016

Comparative study of hotplate wet digestion methods for the determination of mercury in biosolids

scientific article published on 03 July 2008

Determination of Henry's law constants of phenols by pervaporation-flow injection analysis.

scientific article

Determination of acetaldehyde in saliva by gas-diffusion flow injection analysis

scientific article published on 19 May 2013

Determination of ammonia in beers by pervaporation flow injection analysis and spectrophotometric detection

scientific article published in August 2003

Determination of arsenic in industrial samples by pervaporation flow injection with amperometric detection

scientific article published on 04 May 2009

Determination of carbon dioxide in gaseous samples by gas diffusion-flow injection

scientific article published in February 2004

Determination of phenol in water by pervaporation–flow injection analysis

article published in 2000

Determination of rate constants and reaction orders with an open-closed flow-injection configuration.

scientific article

Determination of salivary cotinine through solid phase extraction using a bead-injection lab-on-valve approach hyphenated to hydrophilic interaction liquid chromatography

scientific article published on 21 December 2015

Development of a gas-diffusion microfluidic paper-based analytical device (μPAD) for the determination of ammonia in wastewater samples

scientific article published on 21 April 2015

Development of a microfluidic paper-based analytical device for the determination of salivary aldehydes

scientific article published on 19 March 2016

Development of a passive sampler based on a polymer inclusion membrane for total ammonia monitoring in freshwaters

scientific article published on 12 February 2016

Development of a passive sampler for Zinc(II) in urban pond waters using a polymer inclusion membrane

scientific article published on 22 July 2014

Elemental and metabolite profiling of nickel hyperaccumulators from New Caledonia

scientific article

End effects in flow-analysis and process systems

scientific article published on 01 December 1987

Evaluation and application of a paper-based device for the determination of reactive phosphate in soil solution

scientific article published in May 2014

Extraction of Gold(III) from Hydrochloric Acid Solutions with a PVC-based Polymer Inclusion Membrane (PIM) Containing Cyphos(®) IL 104.

scientific article

Fast and Environmentally Friendly Microfluidic Technique for the Fabrication of Polymer Microspheres

scientific article

Gas-diffusion flow injection determination of Hg(II) with chemiluminescence detection

scientific article published on 08 September 2006

Highly sensitive gas-diffusion sequential injection analysis based on flow manipulation.

scientific article published on 20 February 2009

Hybrid flow system for automatic dynamic fractionation and speciation of inorganic arsenic in environmental solids

scientific article

Imaging chemical extraction by polymer inclusion membranes using fluorescence microscopy

scientific article published on 10 April 2014

LC–MS and GC–MS metabolite profiling of nickel(II) complexes in the latex of the nickel-hyperaccumulating tree Sebertia acuminata and identification of methylated aldaric acid as a new nickel(II) ligand

scientific article published on 04 September 2007

Mathematical modeling of a Nafion membrane based optode incorporating 1-(2'-pyridylazo)-2-naphthol under flow injection conditions

scientific article published on 25 June 2010

Metal ion ligands in hyperaccumulating plants.

scientific article

Microfluidic paper-based analytical device for the determination of nitrite and nitrate.

scientific article published on 7 July 2014

Micrometer-Scale 2D Mapping of the Composition and Homogeneity of Polymer Inclusion Membranes

article

Novel molecularly imprinted polymeric microspheres for preconcentration and preservation of polycyclic aromatic hydrocarbons from environmental samples.

scientific article published on 25 June 2014

On-line determination of cyanide in the presence of sulfide by flow injection with pervaporation

On-line determination of mercury(II) by membrane separation flow injection analysis

scientific article published on 01 July 2004

On-line extractive separation in flow injection analysis based on polymer inclusion membranes: a study on membrane stability and approaches for improving membrane permeability

scientific article published on 04 May 2012

On-line speciation analysis of inorganic arsenic in complex environmental aqueous samples by pervaporation sequential injection analysis.

scientific article

Pervaporation-flow injection analysis of phenol after on-line derivatisation to phenyl acetate

Pervaporation-flow injection determination of ammonia in the presence of surfactants

Pervaporation-flow injection determination of arsenic based on hydride generation and the molybdenum blue reaction

Phytotoxicity of biosolids and screening of selected plant species with potential for mercury phytoextraction

scientific article published on 31 August 2009

Relationships of nicotianamine and other amino acids with nickel, zinc and iron in Thlaspi hyperaccumulators.

scientific article published on 26 September 2007

Sensitive and ultra-fast determination of arsenic(III) by gas-diffusion flow injection analysis with chemiluminescence detection

scientific article published on 04 October 2006

Sensitivity enhancement in membrane separation flow injection analysis by ultrasound

scientific article published on 28 March 2007

Separation and Recovery of Scandium from Sulfate Media by Solvent Extraction and Polymer Inclusion Membranes with Amic Acid Extractants

scientific article published on 06 December 2019

Separation of cobalt(II) from nickel(II) by solid-phase extraction into Aliquat 336 chloride immobilized in poly(vinyl chloride)

scientific article published on 23 May 2006

Solid phase extraction of zinc(II) using a PVC-based polymer inclusion membrane with di(2-ethylhexyl)phosphoric acid (D2EHPA) as the carrier

scientific article published on 30 December 2008

Solid-phase extraction of cobalt(II) from lithium chloride solutions using a poly(vinyl chloride)-based polymer inclusion membrane with Aliquat 336 as the carrier

scientific article published on 01 January 2011

Study of the Spatial Distribution of Mercury in Roots of Vetiver Grass (Chrysopogon zizanioides) by Micro-Pixe Spectrometry

scientific article published on 01 January 2014

Succulent species differ substantially in their tolerance and phytoextraction potential when grown in the presence of Cd, Cr, Cu, Mn, Ni, Pb, and Zn.

scientific article published on 24 July 2015

The Effect of Surface Confined Gold Nanoparticles in Blocking the Extraction of Nitrate by PVC-Based Polymer Inclusion Membranes Containing Aliquat 336 as the Carrier

scientific article

The molybdenum blue reaction for the determination of orthophosphate revisited: Opening the black box.

scientific article published on 10 August 2015

The nature of the salt error in the Sn(II)-reduced molybdenum blue reaction for determination of dissolved reactive phosphorus in saline waters

scientific article published on 25 September 2015

The use of a polymer inclusion membrane as a sorbent for online preconcentration in the flow injection determination of thiocyanate impurity in ammonium sulfate fertilizer

scientific article published on 20 June 2014

The use of a polymer inclusion membrane for separation and preconcentration of orthophosphate in flow analysis.

scientific article published on 31 July 2013

The use of a polymer inclusion membrane in a paper-based sensor for the selective determination of Cu(II).

scientific article published on 16 July 2013

The use of a polymer inclusion membrane in flow injection analysis for the on-line separation and determination of zinc

scientific article published on 22 January 2011

The use of on-line UV photoreduction in the flow analysis determination of dissolved reactive phosphate in natural waters

scientific article

Thin layer distillation for matrix isolation in flow analysis.

scientific article

Transport of ferrocyanide by two eucalypt species and sorghum

scientific article published in July 2008

Use of a Polymer Inclusion Membrane and a Chelating Resin for the Flow-Based Sequential Determination of Copper(II) and Zinc(II) in Natural Waters and Soil Leachates

scientific article published on 31 October 2020

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